“butter up”别理解成“黄油在上面”，而是奉承;巴结;讨好。

【例句】
You'll have to butter them up a bit before they'll agree.
你必须得奉承他们一下，他们才会同意。

He began to butter up the boss in hope of being given a better job.
他开始巴结老板，希望得到一份好工作。