四個(gè)的用法和樣例：
例句
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我們把學(xué)生分成四個(gè)組。
We divided the students into four groups.
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這家百貨公司有四個(gè)緊急出口。
There are four emergency exits in the department store.
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他在結婚之前曾向四個(gè)姑娘求過(guò)婚。
He wooed four girls before finally marrying one.
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每首詩(shī)有四個(gè)詩(shī)節。
There are four verses in each poem.
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大多數汽車(chē)有四個(gè)前進(jìn)擋。
Most cars have four forward gears.
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辛苦工作了四個(gè)小時(shí)后，他覺(jué)得非常餓。
He felt very hungry after four-hours' hard work.
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步行了四個(gè)小時(shí)以后，我們開(kāi)始累了。
After walking for four hours we were beginning to flag.
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