ir·ri·tant
noun/ˈɪrɪtənt/
/ˈɪrɪtənt/
- (specialist) a substance that makes part of your body painful
刺激物 - chemical irritants
化学刺激物
- chemical irritants
- something that makes you annoyed or causes trouble
令人烦恼的事物；造成麻烦的事物 - The presence of the army has been a constant irritant.
军队的存在一直是一种刺激。
- The presence of the army has been a constant irritant.