roll up one's sleeves 撸起袖子,准备开始干活;准备大干一场
roll 卷
sleeve 袖子
We have a long day ahead, so let's roll up our sleeves and start! 今天将会是漫长的一天,所以让我们撸起袖子,开始干活吧。
I know you're disappointed, but you need to roll up your sleeves and redouble your efforts.我知道你很失望,但你需要卷起袖子加倍努力。