*rain² v 1 it is raining if it is raining, drops of water fall from clouds in the sky 正在下雨: Is it still raining? 现在仍在下雨吗? 2 be rained offBrE 【英】 /be rained outAmE 【美】 to be stopped because there is too much rain 因下雨而暂停: Today's tennis final was rained off. 今天的网球决赛因下雨而暂停举行。
rain down to fall in large quantities 大量倾泻: Falling rocks rained down on cars and houses. 滚落的岩石如雨点般砸在汽车和房子上。