Tag the bottles now or we'll forget which is which.

把瓶子加上标签，否则的话，我们就忘了哪个哪个了。

The twins are so alike I can’t tell which is which.

一对双胞胎长得一模一样，我分不清谁谁。

We do not know which behavioural traits are inherited and which acquired.

我们不知道哪行为特征遗传的，哪后天养成的。

The twins are so alike that I can't tell which is which.

对双胞胎一模一样, 我分辨不出谁谁。

A human ", "which will tranquilliser Friday!

极通性的“星期五”哪肯束手就擒！

Which book do these quotations come from?

引文出自哪本书？

Which category does this item fall under?

一项目应归入哪一类?

African bands which are big in Britain.

在英国深受欢迎的非洲乐队。

CFA registered Cattery which breeds British shorthair.

- CFA登录猫场，专门繁殖英国短毛猫。

That is the house which I built.

那我建的房子。

Amplifier is electrical device which make sounds louder.

扩音器一种使声音放大的电气装置。

Which driver was to blame for the accident?

哪位司机事故的肇事者？

Which subjects are compulsory in your school?

在你们学校里， 哪课程必修的？

"Most Sunday papers have comics, which children enjoy."

"多数星期日报登载滑稽或笑话,孩子们所喜欢的。"

It was a disappointing performance which lacked finesse.

那场演出缺乏技巧,令失望。

Which vocational school does the hencoop mountain have?

鸡窝山有哪职业学校？

Which of the two films did you like?

Neither！

Take the sickle which is lying on the grindstone.

把磨刀石上的那把镰刀拿去。

You have a scant hour in which to pack.

你有一小时来整理行李。

He is studying economics, which subject is very important.

他正在学习经济学, 该学科很重要的。