摘 要: | half用作形容词时,表示"一半"的意思,例如:half an hour半小时,half a kilo半公斤。但是,我们若要说"一个(两个……)半某物"时,则既可说"a(an)+单数可数名词+and a half",也可说"one and a half+复数名词"。例如:A kilo and a half is enough.=One and a half kilos is enough.一公斤半就足够了。An hour and a half is OK.=One and a half hours is OK.一个半小
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