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Sea snakes generally possess very toxic venoms.

海蛇一般都有剧毒。

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Even though it makes a great houseplant, you should be careful for children and animals: callas are very toxic, if eaten!

虽然马蹄莲花一种极好的盆栽花，但是你要留心你的小孩和宠物，不要让他们吃了它，马蹄莲花有剧毒。

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So, yes, they're very poisonous, and in fact, there are areas where you find this toxic compound, cyanide.

因此，没错，它们毒性非常强，而实际上，你会发现很多地方都有这种有毒成分，氰化物。

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Mr Hain said that, coupled with youth unemployment, made the situation in Northern Ireland "very toxic".

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Now, this vital cancer drug is seen realistically as a very toxic but very necessary treatment for many cancers.

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Co-proxamol is no better than full strength paracetamol at relieving pain and is known to be very toxic in overdose.

BBC: NEWS | Health | Painkiller safety is investigated