一道拦河坝将会在上游拦住水流，抬升水位。A barrage would halt the flow upstream and lift the water level.拦河坝把河流控制住了.Rivers are controlled by dams.我们决定筑一道拦河坝.We decided to dam the river....
Many pesticides are irritants.很多杀虫剂都具有刺激性。Drink a lot lots of water, a boy tebacle. Avoid tobacco smoke and other irritancy irritants.多喝水, 少吸烟,少喝酒,和其他刺激性的东西.Mustard oils are irritants, capable of causing serious injury t...