只不过每天半小时而已。
一天半小时，一个小时，也许两个小时。
Time Required: At least a half hour.
所需时间：至少半小时。
Do you have to see them for a half hour?
需要看半小时吗？
Except for a half hour at lunchtime.
除了吃中午饭的半小时外。
半小时过去了。
Give yourself a half hour before bed.
睡前给自己半个小时。
大约半个小时前。
Helen: But class begins in a half hour.
海伦：但是再过半小时就要上课了。
You are a half hour late. -only a half hour?
你迟到半小时啦-才半小时吗？
After about a half hour more it started again.
半个多小时后，那声音又响起来。
半个小时？
Less than a half hour later he returned upstairs.
不到半个小时，他又跑上楼来。
He said 60, 000 messages were sent in about a half hour.
约6万条消息在半小时内发送完毕。
Think for a half hour a day exclusively on one subject.
每天花一个小时集中想一件事。
Then they removed the cancer. The operation took only a half hour.
这次手术只用时一个半小时。
The teacher asked him to explain why he was a half hour late.
老师要他解释一下为什么他迟到了半个小时。
It took nearly a half hour in all for the operator to dispatch police.
就这样，直到最终派遣警方，整个对话花了将近半小时。
Somebody coming a half hour early when you invite them to dinner.
有时你邀请人吃饭但他却提前一个半钟到。
The time to turn off technology? Give yourself a half hour before bed.
是时候关掉科技产品？睡前给自己半个小时。
Rachel: Oh God... well, it started about a half hour before the wedding.
瑞秋儿：我的妈呀，一切开始于婚礼前半小时。
Doctors say a half hour of exercise several times a week can prevent heart attacks.
医生说一周做几次半小时运动能防止心脏病发作。
A man in camp took a barometer reading at half-hour intervals.
营地里的一个人每半小时看一次气压计。
An hour and a half is allowed for the exam.
考试时间为一个半小时。
I had to wait half an hour for a bus.
我得等半小时的公共汽车。
I had to wait half an hour for a bus.
我得等半小时的公共汽车。
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