shake a leg

常见例句

Shake a leg， they’re getting impatient.
快動身吧，他們已經等得不耐煩了。
Let's shake a leg there, you guys! I got to get this truck unloaded and on the way back to the warehouse before dark.
他說：“喂！你們這幫人快點兒吧！我得把這車貨卸完，在天黑前趕廻倉庫去呢。”
3：Bob! Hey, Bob, wake up! It's already 9:30 and you've got that big math test at 10 o'clock. Come on, man, shake a leg! Come on, - you've got to get moving right now!
他使勁叫醒Bob，因爲已經到九點半了，而Bob十點有數學大測騐。時間緊迫，所以他要Bob必須立刻行動起來。顯然他說shake a leg，是催促Bob趕快行動。這就是這個習慣用語的意思。