火车的速度至少为小船速度的六倍。
At least, the train runs 6 times as fast as the boat.
youdao
火车的速度至少是小船速度的6倍。
The train runs at least 6 times as fast as the boat.
装船速度是多少?
What is the loading rate?
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模块上移
模块下移
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