这个句子应该怎么改呢
The number of industralised countries in 1980 was about 9, which was three times of developing countries.three times三倍这边应该怎么改才正确 你是说要换一种说法么?
triple [b]回复 [url=http://bbs.tingroom.com/redirect.php?goto=findpost&pid=724440&ptid=399967]2#[/url] [i]tingroom[/i] [/b]
我是说这个句子是不是对的呢?
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