rain /rein/ I. n.［u］雨：下雨 (有定语修饰时须用a 或an): He was standing outside in the rain. 他冒雨在外面站着。It looks like rain. 好像要下雨。They were caught in a heavy rain and had to turn back. 他们遇上了一场大雨，只得返回。‖II. vi. & vt. 1.下雨：It often rains and crops grow fast. 天经常下雨，庄稼长得很快。 2. 使降雨；落下；使如雨而下: German guns and German planes rained down bombs, shells, and bullets. 德军的大炮和飞机倾泻雨点般的炸弹，炮弹和枪弹。His eyes were raining tears. 他泪如雨下。
rainbow /ˈreinbəu/ n. ［c］ 虹，彩虹：a primary rainbow 虹；a secondary rainbow 霓；all the colours of the rainbow 种种颜色 A beautiful rainbow was formed. 一条美丽的彩虹形成了。
raincoat /ˈreinkəut/ n.［c］雨衣：wear a raincoat 穿着雨衣 Take a raincoat in case it rains. 带上雨衣以防下雨。
rainy /ˈreini/ adj. 下雨的， 多雨的：a rainy day 雨天；a rainy region 多雨地区；the rainy season 雨季；a rainy street 雨天湿淋淋的街道
