It is not considered toxic, but is an irritant. 它被视为无毒,但是它是刺激物。
The noise of traffic is a constant irritant to city dwellers. 车辆的噪音对城市居民是永无止境的骚扰。
When a droplet strikes your eye, you respond by producing a copious flow of tears to try and wash the irritant away. 当这些水滴接近我们双眼时,我们的眼睛会条件反射地分泌出泪水试图洗掉这种刺激感。