buck for

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释义
为...而努力(后加sth.)
To strive for persistently; to try hard to obtain (a promotion, raise, etc.)

例句
Ted: Hey. You bucking for a promotion? Go home already.
Skyler: I will. I will. (Breaking Bad)
泰德：嘿，为升职而努力啊？该回家了。
斯凯勒：好的，好的。（绝命毒师）