a number of 和the number of用法
1. A number of + 複數名詞 + 複數動詞
=some/或a lot of + 複數名詞 + 複數動詞
2. The number of + 複數名詞 + 單數動詞
= the amount of =總數
3.例如
The number of cars is increasing.
(汽車的數量在增加中)
A number of cars are increasing.
(一些汽車正在增加)
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