You don't really need 8 glasses of water (we get some in food and other drinks), but drinking more water doesn't hurt.
你真的不需要8杯水（我们会吃一些东西和喝其他的饮料），但是喝多了也无害。
However, genetically modified food still has some security problems which can't be ignored. They become the problems that people pay more attention and need to be answered urgently.
然而转基因食品还有一些不容忽视的安全性问题摆在我们面前，成为人们颇为关注并迫切需要回答的问题。
However, genetically modified food still has some security problems which can't be ignored. They become the problems that people pay more attention and need to be answered urgently.
然而转基因食品还有一些不容忽视的安全性问题摆在我们面前，成为人们颇为关注并迫切需要回答的问题。
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