我们有时候还参加博物馆的研讨会学习一些身边的实用科学。
We can sometimes join the workshops to learn the practical science around us.
我认为任何一门实用科学,在没有必要了解它时,不会有人去研究它。
I suppose that no practical science is ever studied where there is no need to know it.
他的科学实验既实用又简单,一点也不奇怪。
His scientific experiment was quite practical and simple and there was nothing weird about it at all.
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