在五年级U3的单元中,有描述动物的身体部位的句子。
They have big eyes and small ears.
It has big ears and a short tail.
It has four legs and a long tail.
It has a big mouth and a long tail.
It has two legs and two wings.
类似这样的句子中,有些two是省略的,有些two不省略。
请问这样加不加 two是不是都可以?而a和其他量词是不是一般不省略?
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