- 1. 半小時的；每半小時的
- 1. 半小時
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1.half an hour (O) 2. an half hour (X) ==> a half hour 3. half hours (X) ==> half hour "..., if you change the above sentence as: I will see you in a half hour It is half an hour program. They would all sound awkward. ...
...Half an hour」是「一小時的一半」，也就是說「半小時」。 「A half hour」是「一個為期半小時的」，就像說「一個十八歲的」〈An 18 year old...
In a half an hour = in half an hour. a half an hour ago = half an hour ago. The reason there...an hour, an apple, a student ... to follow this rule, that is why "in a half an hour" has "a" in front of half and "an" in front of hour...