To go there and come back by bike will only take about half an hour...
骑自行车来回仅用半个小时的时间。
And, since average swimming speed is about 3kph (2mph) even a single rescue mission can take more than half an hour.
而且，由于平均游泳速度约为3千米每小时(2英里每小时)，所以单单一项拯救任务就要耗费半个多小时。
The tour will take about an hour and a half. We ought to be back here by 3:00.
参观大概要一个半小时，3点钟以前回到这里。
How long does it take you to do your homework every day? About half an hour.
你每天做作业要花多长时间？大约半小时。
It'll take us about half an hour to go there.
我们用了大约半个小时的时间到那儿。
The tour will take about an hour and a half. We can start over here.
这次参观大概需要一个半小时。我们可以从这里开始。
It will take you about half an hour.
大约要花半个小时到那儿。
The tour will take about an hour and a half.
参观大概要一个半小时，3点钟以前回到这里。
The tour will take about an hour and a half. We ought to be back here by 8:88.
参观大概要一个半小时春兰空调配件，8点钟以前回到这里。
The tour will take about an hour and a half. We ought to be back here by 8:88.
参观大概要一个半小时春兰空调配件，8点钟以前回到这里。
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