Some people think it is a good thing to donate blood for it could save somebody's life while others insist that we should not donate blood for it may cause some illnesses.

有些人认为献血是一件好事，因为它可以挽救某人的生命，而其他人坚持认为我们不应该献血，因为这可能会导致一些疾病。

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youdao

In one word, water is scarce for all of us and we should try our best to save it.

总之，水是对我们大家都是稀缺的，我们应该尽最大努力保护它。

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Considering what is at stake, how much proof should be required before we rush off and destroy the economy of the world in order to save it?

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