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1·Strychnine is used to kill rodents and pyrrolizidine alkaloids have significant activity against microbes.

士的宁用于杀灭啮齿动物，而吡咯里西啶类生物碱则具有较强的杀菌活性。

2·Someone must have laced my cigars with strychnine.

肯定有人在我的雪茄中加了少量的土的宁。

3·Working with Pelletier, he isolated quinine, strychnine, brucine, cinchonine, veratrine, and colchicine, some of which became widely used as drugs.

他与佩尔蒂埃合作，分离出了奎宁、土的宁、番禾鳖宁、弱金鸡钠碱和秋水仙碱，其中一些被作为药物广泛使用。