half of an hour前两种用得多些
half f an hour半小时
Half and an hour半小时
about half an hour大约半小时;约半小时;约过了半个小时;大约半个小时
spend half an hour花半小时;花半个小时
Listening half an hour每天听半个小时
Maybe Half An Hour也许半小时
Only Half An Hour只有半个小时
Half an hour after晚半小时