We'd like half a kilo of pears.

我们需要半公斤梨。

Slice me half a kilo of beef.

给我切一斤牛肉。

He needs half a kilo of carrots.

他需要半公斤胡萝卜。

How much for half a kilo of this tea?

这个茶叶多少钱一斤？

We should get half a kilo of minced beef.

我们应该买半公斤切碎的牛肉。