Some mushrooms contain a deadly poison.

有些蘑菇含有致命毒素。

《牛津词典》

This is a deadly poison.

致命的，致死的；毒性的。

youdao

But if it is eaten by a man, it can kill with its deadly poison.

但是如果人吃了它，有可能会因花的剧毒而丧命。

youdao

Instead, it conjures up a deadly poison that seems to seep out of the flowers.

ECONOMIST: A French master reassessed

Officials previously revealed that two threatening letters postmarked in Louisiana and sent to Bloomberg contained traces of the deadly poison ricin.

WSJ: Union: NY mayor threats postmarked Shreveport, La.

Two threatening letters postmarked in Louisiana and containing traces of the deadly poison ricin were sent to Bloomberg in New York and to his gun-control group in Washington, officials said.

WSJ: Secret Service: Letter to White House intercepted