节约用水、水的循环利用是当今节约型社会的重要课题。

Water conservation and water recycling are very important to establish saving society.

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答：整个殖民地的水都是来来回回循环利用的。

A: All the water in the colony is used over and over again.

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设想利用茶壶的形状来让水得以循环。

The idea is to use the shape of the pot to get the water circulating.

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设想利用茶壶的形状来让水得以循环。

The idea is to use the shape of the pot to get the water circulating.

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