The best answer, many people thought, was to free the slaves and help them return to Africa.
VOA: special.2009.04.16
There is obviously no magic solution to this question but the best answer I know of is Socrates.
这个问题,没有神奇的解答,但我认为最佳的答案是苏格拉底。
Probably the best answer is our body is worn out during the day and sleep is necessary to put it back into shape.
最佳的答案应该是,一天下来,我们的身体已经疲惫了,有必要进行睡眠,以恢复状态。
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