/reɪn ||; ren/verb1 [I] (used with it 与it连用) to fall as rain 下雨；降雨: Oh no! It's raining again! 糟了，又下雨了！Is it raining hard ? 雨下得大吗？We'll go out when it stops raining. 雨停了我们便出去。
2 [I,T] rain (sth) (down) (on sb/sth) to fall or make sth fall on sb/sth in large quantities （使）大量落下: Bombs rained down on the city. 炸弹朝这个城市倾泻。
be rained off to be cancelled or to have to stop because it is raining 因下雨而取消或被逼停止:
The tennis was rained off. 网球赛因下雨而取消了。