a nodding acquaintance
a slight acquaintance with a person or knowledge of a subject
（与某人）点头之交；（对某物）略知一二
students will need &B{a nodding acquaintance with} three other languages.
学生需要对其他三种语言略知一二。
be on nodding terms
know someone slightly
（对某人）略有所知
get the nod
be selected or approved
获选；获准
receive a signal or information
获悉
give someone/thing the nod
select or approve someone or something
选中；批准
they banned one book but gave the other the nod.
他们查禁了一本书却批准了另一本。
give someone a signal
示意
a nod's as good as a wink to a blind horse
(proverb)used to convey that a hint or suggestion can be or has been understood without the need of further elaboration or explanation
(谚)不言自明
on the nod Brit. informal 英，非正式
by general agreement and without discussion
未经讨论而一致通过
parliamentary approval of the treaty went through on the nod.
议会点头通过了该条约。
(dated)on credit
(旧)赊账
nod off
(informal)fall asleep, especially briefly or unintentionally
(非正式)打瞌睡，打盹
some of the congregation nodded off during the sermon.
在布道集会上有些人打起了瞌睡。
nod something through
(informal)approve by general agreement and without discussion
(非正式)未经讨论而一致通过
the DTI nodded through the bid from Airtours.
贸易工业部点头通过了空旅公司的投标。