- 我吃了3片阿斯匹林，半小時內就止痛了。
By taking three aspirins I freed myself from pain for half-an-hour.
- 他東拉西扯地談了半小時，也沒說到點子上。
He beat around the bush for a half hour without coming to the point.
- 航空集散站每半小時有一輛客車開往機場。
Coach from the terminus goes to the airport every half an hour.
- 半小時以後我要去值班。
I go on duty in half an hour.
- 戴維不到半小時就得了二十分。
Davy knocked twenty runs up in less than half an hour
- 一根好的雪茄至少可抽半小時。
A good cigar will smoke for at least half an hour
- 我們不得不在護照檢查站等候了半小時。
We have to wait for half and hour in passport control.
- 我們大約每半小時巡視一次。
We made our rounds about every half-hour.