know which side your bread is buttered on
US /noʊ wɪtʃ saɪd jʊər brɛd ɪz ˈbʌtərd ɑn/
UK /noʊ wɪtʃ saɪd jʊər brɛd ɪz ˈbʌtərd ɑn/
1.
知道自己的利益在哪里, 知道自己的好处在哪里
to be aware of where your advantages or benefits come from and to act in a way that maintains them
:
•
He always helps his boss because he knows which side his bread is buttered on.
他总是帮助他的老板，因为他知道自己的利益在哪里。
•
You need to know which side your bread is buttered on if you want to succeed in this company.
如果你想在这家公司取得成功，你需要知道自己的利益在哪里。