on which side your bread is buttered
你的面包是涂黄油的
以上为机器翻译结果，长、整句建议使用 人工翻译 。
You must know which side your bread is buttered on.
你必须知道自己的利益所在。
youdao
Justin: I just hope you know which side your bread is buttered on. Nowadays, good jobs are hard to come by.
贾斯汀：我只是希望你能清楚什么对自己最有利。现在，要找份好工作可不容易。
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