牛津电影里 79%
系上安全带
to fasten your seat belt (= a belt worn by a passenger in a vehicle)
编辑释义电影里 21%
做好准备(要来劲了/有的受了)
Used to tell someone to get ready for something intense, difficult, long, or surprising that is about to happen.
Yeah. Buckle up, babe. [chuckles]
释义来自《牛津高阶英汉双解词典》第 9 版