half hour

剑桥词典

a period of 30 minutes
半小时，30分钟
The dollar surged against the yen in the final half hour of trading . 在交易的最后半小时里美元对日元的汇率猛涨。
Half an hour later , she was smiling and chatting as if nothing had happened . 半小时后，她又谈笑风生，仿佛什么事都没发生过。
She is to host a new half-hour show that will be broadcast every weekday evening . 她将主持一档新的半小时节目，在工作日晚间播出。
Trains for Washington depart on the/every half hour (= at 10.30, 11.30, etc.). 开往华盛顿的列车每逢半点发出一趟。

例句

• Once Mrs Kirkpatrick starts talking to you, you're stuck with her for a good half hour .
• The train doesn't leave for another half hour yet .
• Then we had to sit through another half hour of tedious questions .
• The first half hour of the day is usually spent on correspondence , emails and paperwork .
• I've spent the last half hour trying to get the baby off to sleep .
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