[最佳答案] 短语: come down, come up with, come out, come in, come on, come off, come by, come to, come into play. 1. The rain is coming down. 雨开始下了. 在美国的口语中, 美国人很喜欢用动词片语, 尤其是以 get 或是 come 开头的片语. 因为这类的动词除了表示出动作之外, 还说出了方向. 像这句话同样也可以说成, It's raining, 或是 It's starting to rain. 但所表达的意思就不如 come down 来的丰富. 这句话是有一次去看 Football 时学的, 打到一半就下起雨来, 播报员就说, Tha rain is coming down. Come down 还有另一个重要的意思, 就是"下来楼下" 的意思. 比如说你去找一个住在五楼的朋友, 你在楼下的对讲机就可以问他, Do you want to come down? 你想不想下来啊? 2. I came up with a good idea to