When the global water crises take place one after another, most African countries have also emerged in the water crisis.

在全球水资源危机此起彼伏的时候，多数非洲国家也出现了水危机。

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There has got growing concern in recent years about the collectively quitting school affairs that take place one after another.

近年来，高校连续发生的集体退学事件引起了社会的广泛关注。

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The expectation is that as the first startups get up and running, new ones will take their place, generating one company after another.

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