This once-in-alifetime ?event actually may take ?place twice in some folks’ lives.
出自-2016年12月听力原文
Get key information by reading just once or twice.
出自-2014年6月听力原文
A letter written by Charles Darwin in 1875 has been returned to the Smithsonian Institution (档案馆) by the FBI after being stolen twice.
2018年6月四级真题（第二套）阅读 Section C
As a guest flyer, the king worked about twice a month, always as co-pilot.
2018年12月四级真题（第二套）听力 Section A
Experimental users may try drugs once or twice.
2015年12月四级真题（第二套）听力 Section C
since then, I have been trying to attend dancing classes twice a week after work.
2019年6月四级真题（第二套）听力 Section C
Some raised more than twice their goals, but others have fallen short of reaching even modest targets.
2019年12月四级真题（第二套）阅读 Section C
That's the conclusion of a new study that finds that Earth's oceans now 26 absorb heat at twice the rate they did 18 years ago.
2016年12月四级真题（第二套）阅读 Section A
This once-in-a-lifetime event actually may take place twice in some folks' lives.
2016年12月四级真题（第二套）听力
It is also troubling that voting rates among our youngest eligible voters—18- to 24-year-olds—are way down: Little more than one in four now go to the polls, even in national elections, compared with almost twice that many when 18-year-olds were first given the vote.
出自-2016年6月阅读原文
Enrollees would have to pay more money for many services out of their own pockets, and that would encourage them to think twice about whether an expensive or redundant test was worth it.
出自-2016年6月阅读原文
Piling on higher taxes won't help, "If higher taxes make it more expensive to raise children," says Nicholas Eberstadt of the American Enterprise Institute, "people will think twice about having another child.
出自-2013年12月阅读原文
To advise couples to think twice before having children
出自-2013年12月阅读原文
The stack of congressional regulations governing federal student grants and loans now stands twice as tall as I do.
出自-2012年6月阅读原文
Since 1982 tuitions have been rising at roughly twice the rate of inflation.
出自-2011年6月阅读原文
But over the next few decades labour forces in rich countries are set to shrink so much that inflows of immigrants would have to increase enormously to compensate: to at least twice their current size in western Europe's most youthful countries, and three times in the older ones.
出自-2010年12月阅读原文
That same study found that randomly assigned interracial roommates at Ohio State broke up before the end of the quarter about twice as often as same-race roommates.
出自-2012年6月听力原文
After six months, researchers found the high protein group had significantly improved their muscle function一almost twice as much as the control group.
2019年12月六级真题（第二套）阅读 Section B
It is also troubling that voting rates among our youngest eligible voters—18- to 24-yearolds— are way down: little more than one in four now go to the polls, even in national elections, compared with almost twice that many when 18-year-olds were first giv
2016年6月六级真题（第一套）阅读 Section B
Older adolescents scored about 50 percent higher on an index of risky driving when their peers were in the room — and the driving of early adolescents was fully twice as reckless when other young teens were around.
2018年6月六级真题(第二套)阅读 Section B
The European Union's level of international co-authorship is about twice that of the United States, Japan, and India.
2019年6月六级真题（第二套）听力 Section C
The extreme isolation of these massive farms leaves them often unattended, and monitored only once or twice a year, which means if the livestock falls ill or requires assistance, it can be a long time for farmers to discover.
2018年12月六级真题（第三套）阅读 Section C
They cited a study presented earlier this year of 249 pairs of parents and their children in which twice as many children as parents wanted rules on what parents could share.
2018年12月六级真题（第三套）阅读 Section B
This is more than twice the level of two decades ago.
2019年6月六级真题（第二套）听力 Section C
Those who used such devices 40 hours a week or more one in ten teenagers were twice as likely to be unhappy.
2019年12月六级真题（第一套）阅读 Section B
While some economists predict continued recovery in the future, Baily says the only certainty is that banks are unlikely to make the same mistakes twice.
2016年6月六级真题（第二套）听力 Section C
Americans eat only about fifteen pounds of fish per person per year, but we eat twice as much fish in restaurants as at home.
2016年高考英语全国卷3 阅读理解 七选五 原文
Several safari camps operate as the base for this adventure, providing unique rides twice a day to explore deep into the delta.
2015年高考英语重庆卷 阅读理解 阅读D 原文
The obvious one is money: eating out once or twice a week may be affordable but doing this most days adds up.
2018年高考英语浙江卷 语法填空 原文
Those who had done the most boyhood activities were twice as likely to have warm relations with a wide variety of people, five times as likely to be well paid and 16 times less likely to have been unemployed.
2016年高考英语天津卷 阅读理解 阅读C 原文
Think twice before we act.
2015年高考英语福建卷 阅读理解 阅读D 选项
During the decade before the economic crisis, spending on legal services in America grew twice as fast as inflation.
出自-2014年考研阅读原文
Getting the print edition seven days a week costs $500 a year—more than twice as much as a digital-only subscription.
出自-2016年考研阅读原文
After bills, Tony has ￡60 a week to spend, ￡40 of which goes on food, but 10 years ago he was earning ￡130,000 a year working in corporate communications and eating at London's best restaurants at least twice a week.
2013年考研真题（英语二）阅读理解 Section Ⅱ
There has been a kind of inflationary process at work: ?nowadays anyone applying for a research post has to have published twice the number of papers that would have been required for the same post only 10 years ago.
2020年考研真题（英语一）翻译 Section Ⅲ
Today, because of shrewd advertising and public health campaigns, many Americans habitually give their pearly whites a cavity-preventing scrub twice a day, often with Colgate, Crest or one of the other brands.
2010年考研真题（英语二）阅读理解 Section Ⅱ