Definition
This idiom is used to warn someone that they will become uninteresting if they only work and never take time to relax.
劳逸結合，避免单調乏味。
I've been working non-stop lately, without any rest. I need to remember the saying 'all work and no play makes Jack a dull boy'.
我最近一直在不停地工作，沒有休息。我需要記住這句俗語『只工作不玩耍，聰明孩子也變傻』。
He spends all day in the office, no wonder he looks so tired. Remember, 'all work and no play makes Jack a dull boy'.
他整天都在辦公室，難怪他看起來這麼累。記住，『只工作不玩耍，聰明孩子也變傻』。
I know you’re eager to finish this project, but don’t let yourself become all work and no play. Remember ‘all work and no play makes Jack a dull boy’.
我知道你急著完成這個專案，但不要讓自己變成只工作不休息。記住『只工作不玩耍，聰明孩子也變傻』。