like clockwork

US /laɪk ˈklɑːk.wɜːrk/
UK /laɪk ˈklɑːk.wɜːrk/
"like clockwork" picture
1.

像發條一樣準時, 有條不紊地

with perfect regularity and predictability

:
Every morning, the train arrives like clockwork at 7:00 AM.
每天早上,火車都像發條一樣準時在早上7點到達。
The whole operation ran like clockwork, without any hitches.
整個行動都像發條一樣順利,沒有任何障礙。