poisonous substance

英文造句：

1. Antitoxin is substance that acts against a poisonous substance and prevents it from having a harmful effect.
   抗毒素是抵抗有毒物質並防止其產生有害作用的物質。
2. Paper coated with a sticky, sometimes poisonous substance, used to catch flies.
   捕蠅紙用於捕殺蒼蠅的覆有粘稠性、有時有毒性物質的紙

英文解釋：

名詞 poisonous substance:

1. any substance that causes injury or illness or death of a living organism
   同義詞：poison, toxicant