half an hour什么意思、怎么读？单词发音音标、相关例句、释义：半小时

half an hour 音标：[hɑ:f æn ˈauə]

半小时；

半小时为half an hour, 半天为half a day, 半镑为half a pound, 尽量避免用half a year, half a month, 要用six months, two weeks 或 fifteen days 要注意的是Half of the work is done Half of the books are sold. 当Half 作名词时，其谓语动词要看of后面的名词而定。如名词是不可数名词则用单数谓语动词，如是复数名词时，则要用复数谓语动词。要注意的是一个半的表达法，如：One and a half apples is left on the table.其名词要用复数，但谓语动词则要用单数。
［误］ I drove about half mile.
［正］ I drove about half a mile.
［析］半小时为half an hour, 半天为half a day, 半镑为half a pound, 尽量避免用half a year, half a month, 要用six months, two weeks 或 fifteen days 要注意的是Half of the work is done Half of the books are sold. 当Half 作名词时，其谓语动词要看of后面的名词而定。如名词是不可数名词则用单数谓语动词，如是复数名词时，则要用复数谓语动词。要注意的是一个半的表达法，如：One and a half apples is left on the table.其名词要用复数，但谓语动词则要用单数。

He finally drifted in half an hour after everyone else.

他终于飘然而至，比别人迟到了半个钟头。

She blathered on for half an hour about her high-paying job.

有关她那高薪工作她瞎侃了半个钟头。