The bird only weighed ten grams.为什么要用weighed?而不是别的 - - 还有Nine divided by three is three 为什么divide用divided 而不是weighs
的有关信息介绍如下:
The bird only weighed ten grams.强调的是过去这只鸟的重量.可以理解为“(过去)这只鸟仅仅重10克”.Nine divided by three is three .这是一个定语从句.Nine (divided by three )is three,括号中的是过去分词作...



