It takes about three to six months for a rice plant to become ready.

一株水稻要三到六个月的时间才能成熟。

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It takes about three weeks to a month to notice significant changes in your weight due to altering your training program.

由于改变了训练计划，需要大约三周到一个月的时间才能注意到自己体重的明显变化。

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It takes about three days to travel from Earth to the moon by spaceship.

乘太空飞船从地球到月球上旅行大约要三天时间。

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In fields where synthetic chemicals have been used in the past, it takes about three growing cycles to make the full conversion.

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It takes about four weeks for a skin cell to be "primed" for reprogramming, and then it takes an additional three to four weeks for iPS colonies to grow, according to Dr. Joseph Wu, study co-author and assistant professor of cardiology and radiology at Stanford's School of Medicine.

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Takes the dog whelk about three days to suck it all up.

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