Of course, the range of the car is greater than this because the driver can switch to petrol if the hydrogen tank is empty.

当然，实际的行程远远超过这个，因为驾驶员可以在氢燃料用完后切换到使用汽油。

youdao

There are caveats, of course. Exercising on an empty stomach is unlikely to improve your performance during that workout.

当然，需要注意的是，运动过程中空腹锻炼不可能提高运动效果。

youdao

Of course, it's much easier said than done to empty your mind of everything and focus on what you have to or want to do at the moment.

当然，说着容易做着难。要想放下千思万绪而专注于目前必须做的或是想做的是很难的。

youdao

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