weight的可数与以及相关搭配

1. 表示“重”“重量”“分量”，不可数。如：

What is the weight of the parcel? 包裹有多重?

The kilogram is the international standard of weight. 千克是国际重量标准。

有时可专指“体重”。如：

She should eat less if she wants to lose weight. 如果她想减肥，就应当少吃些。

During her illness her weight went down from 50 kilos to 40. 在病中她体重由50公斤下降到40公斤。

2. 比较 by weight与in weight：前者表示“按重量”，后者表示“重量上”。如：

Do they charge carriage by weight? 他们是按重量收取运费吗?

It’s smaller in size but greater in weight. 它体积比较小，但分量比较重。