The hognose snake，sometimes called the puff adder，is one of nature's clowns．Some people think that he is deadly poisonous．Actually，he's just a harmless fellow who spends most of his time huntingtoads．

猪鼻蛇，有时也被称作膨身蛇，是自然界丑角中的一员。 有人认为它是剧毒蛇，其实，它恰恰是无害的，其大部分时间用于捕捉蟾蜍。

Adder venom attacks the blood and nervous system.The venom of an adder bite is less toxic than that of a puff-adder, but it is far more toxic when injected intravenously.

蝰蛇毒素会破坏血液和神经系统，虽然蝰蛇一吻的毒性不如蝮蛇这么恐怖，但如果将毒素注射进皮肤，那毒性就大了去了。