cotton² v cotton on phr v [I] informal to realize what something means 【非正式】 明白，领会: It was a long time before I cottoned on to what he was talking about. 过了很久我才听明白他在说什么。
cotton on informal to realize what something means 【非正式】 明白，领会: It was a long time before I cottoned on to what he was talking about. 过了很久我才听明白他在说什么。