Newborn calves soon discover that they will have to spend every day walking in search of food.新生的小驯鹿很快就发现它们为了觅食得从早走到晚

in search of:寻找； 寻求

He go in search of a doctor for his sick wife.

他去为他生病的妻子找医生。

The scientists are in search of a new element.

科学家们正在寻找一种新元素。

The flies not only drive them to distraction,but they can drain a pint of blood each day.这些苍蝇不但烦人而且一天的吸血量高达半公升

not only...but...:不仅...而且

Water is not only colorless, but odorless as well.

水不仅没有颜色，也没有气味。

They not only talked but also shouted and laughed.

他们不只谈话，而且喊叫大笑。

相关短语:either...or...或 ... 或 ...

Tom is going to buy either a guitar or a piano.

汤母不是要买一把吉他就是要买一架钢琴。

Can you speak either English or French?

你会说英语或法语吗？

neither ... nor ...既不 ... 也不 ...

It is neither hot nor cold in winter here.

这里冬天既不热也不冷。

He's neither an electrician nor a mechanic.

他既不是电工也不是技工。