cotton on
US /ˈkɑːt.ən ɑːn/
UK /ˈkɑːt.ən ɑːn/
1.
明白, 领会
to understand something after a period of not understanding it
:
•
It took him a while to cotton on to what I was saying.
他花了一段时间才明白我在说什么。
•
She finally cottoned on to the joke.
她终于明白了这个笑话。