quit 放弃
I got caught up at work. But I'm quitting tomorrow.
公事担搁了 不过我明天就辞职
He did not quit as France's prime minister of his own accord.
他辞去法国总理职务并非出于自愿。

pick up 学会
Probably some European goodbye thing he picked up in London.
可能在伦敦学到的欧洲风俗
Where did you pick up your English?...
你在哪儿学的英语？