chemicalKK [ˋkɛməkəl] /ˈkɛməkəl/发音名词1化学物质、化学药品、化学制品The factory dumped toxic chemicals into the nearby river.那间工厂把有毒的化学物质倒进附近的河里。2化学成分、化学物质指人体或食物中Exercise releases chemicals in the brain that improve your mood.运动会使大脑释放出改善心情的化学物质。形容词1化学的The students watched a chemical reaction change the liquid's color.学生们看著化学反应改变了液体的颜色。2用化学药剂的、含化学成分的She avoids chemical cleaners and uses vinegar instead.她不用含化学成分的清洁剂,改用醋来清洗。3化学武器的The country was accused of launching a chemical attack.该国被指控发动化学武器攻击。用这个字练口说→