In other words, you should know which side your bread is buttered on.

换句话说，您应该知道which side your bread is buttered on。

I see. Well, it's always good to know which side your bread is buttered on.

知道了，嗯，能清楚什么对自己最有利总是件好事。

" To know which side your bread is buttered on" means you are aware of the people who can help you.

" To know which side your bread is buttered on" 意思是你知道什么是对自己最有利的事。

If you know which side your bread is buttered on, then you know what your best interests are and will act to protect them.

如果你知道你的面包的那一面涂了黄油，那么你就值得自己最佳利益所在，而且会行动起来保护它们。

Know which side your bread is buttered on.

知道面包的哪一面涂了黄油。