李时珍花了多长时间写《本草纲目》？

How long did Li Shizhen spend in writing Compendium of Materia Medical?

youdao

找到一头合适大象花了多长时间？

How long did it take to find a suitable elephant?

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J·K·罗琳写《哈利·波特》系列花了多长时间？

How long did it take J. K. Rowling to write the Harry Potter series?

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But notice how long it took us to get there, how many centuries it took.

但是要注意到这要多长时间，它花了多少个世纪。

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How long did it take old Chopin to think that up do you suppose? Two seconds?

老肖邦花了多长时间去构思这段曲子,你觉得呢,两秒钟吗

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