For them this is a major operation which involves considerable planning.

对他们来说,这是一件涉及到有相当分量的筹划的重要事情.

《用法词典》

He must have a major operation on his knee to mend severed ligaments.

为了让他断裂的韧带愈合，他的膝盖必须动一次大手术。

柯林斯例句

It is a major operation . It is a very messy operation.

这是大手术,难度很大.

辞典例句

KC : So we have a major operation happening in Yemen right now.

所以我们现在在也门有大规模作战发生.

互联网

Hysterectomy is the most common major operation performed on non pregnant women.

子宫切除术是适用于非妊娠妇女最常用的主要手术方式.

互联网

It takes a major operation to extract money from a minor poet.

要从小诗人那儿榨出钱来,得施行一次大手术.

互联网

It's doubtful if her heart would stand the strain of another major operation.

很难说她的心脏是否能再次承受大手术.

互联网

He is having a major operation.

他正在接受一次大的手术.

互联网