cotton on

动词 cotton on:

1. understand, usually after some initial difficulty
   同义词：catch on, get wise, get onto, tumble, latch on, twig, get it

1. This district grew cotton on a large scale.
   这个地区过去大量种棉花。
2. He seems to cotton on quickly.
   他似乎理解事物很快。
3. He seems to cotton on quick.
   他似乎敏于理解事物。
4. He didn't seem to cotton on to me then.
   当时他似乎并不喜欢我。