He was afraid to be punished, so he drank the poison to kill himself.

他害怕受到惩罚，因此喝毒药自杀了。

youdao

You will have to kill these unwanted plants with poison.

你将不得不用药物把这些讨厌的植物毒死。

《新英汉大辞典》

If it does, then a hammer connected to a Geiger counter will trigger, break the vial, release the poison, and kill the cat.

如果发生了衰变，那么会触发一个连接在盖革计数器上的锤子，打碎瓶子，释放毒气，杀死猫。

youdao

The bed nets are treated with a poison to kill mosquitoes.

VOA: special.2010.03.10

Yeah, if they have a race riot round here, I'm gonna kill all the white folks with my poison."

当然，假如他们有那样的种族暴动，我会用毒药除掉他们，“

耶鲁公开课 - 1945年后的美国小说课程节选

He knows that alcohol will kill him like poison.

VOA: special.2010.01.10

Another risk: The poison could kill some of the very birds Mr. Martin wants to protect.

WSJ: This British Assault on an Island Off Argentina Is for the Birds

When natural evolution causes weeds or pests to resist their poisons, which their crops are resistant to, they simply breed a new crop and create a new poison to kill the pests.

FORBES: Every 30 Minutes an Indian Farmer Commits Suicide, Biotech Is Not To Blame

Unlike chemotherapy, which uses chemicals to poison cancer cells, Rituxan's monoclonal antibody kills tumor cells much as the body's own antibodies kill invading germs.

FORBES: Follow Through