然而，这座山并非完全无害。

The mountain hasn't been entirely harmless, however.

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把食物放进微波炉里几分钟似乎完全无害，但一项新的研究发现，在欧洲，这种快速烹饪的机器的碳排放量几乎和700万辆汽车的一样多。

Popping food into the microwave for a couple of minutes may seem utterly harmless, but Europe's stock of these quick-cooking ovens emit as much carbon as nearly 7 million cars, a new study has found.

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事实上，有些植物会伤害你，但大多数是完全无害的。

The truth is that some plants can hurt you, but most are completely harmless.

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