n.刺激物；刺激劑
adj.刺激的；刺激性的
It is not considered toxic, but is an irritant. 它被視為無(wú)毒，但是它是刺激物。
The noise of traffic is a constant irritant to city dwellers. 車輛的噪音對(duì)城市居民是永無(wú)止境的騷擾。
When a droplet strikes your eye, you respond by producing a copious flow of tears to try and wash the irritant away. 當(dāng)這些水滴接近我們雙眼時(shí)，我們的眼睛會(huì)條件反射地分泌出淚水試圖洗掉這種刺激感。
用作形容詞 (adj.)Wear protective clothing to avoid skin contact with irritant chemical. 穿上護(hù)身衣物，以避免刺激性化學(xué)品觸及皮膚。
adj.減輕刺激的；緩和的
