一.句子：I think I'm coming down with sth
二.含义：coming down with 患上、染上
三.对话：
A: you don't look too good.
B: I fell terrible.
A: Are you coming down with a cold?
B: I think so.I'd better buy lots of vitamin C
四.扩展：
1.come down （成本、水平或数量） 下降，降低; 落下; 降落;
Interest rates should come down
利率应该降低
2.come down to（问题、结论）归结为
Someone says everything the problem comes down to money
When you come down to it, however, the basic problems of life have not changed
然而，归根结底，生活中一些基本的问题还是没有变。
Thank Coach Shane
