看美剧学英语习语：For god's sake.

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For god's sake: for (one's) (own) sake means for the purpose or benefit of someone or something; to satisfy the demands of someone or something. for god's sake： A mild oath of exasperation, annoyance, frustration, anger, or surprise.（情感：恼怒，生气，挫败）

for god's sake： 常用于口语表达，意思是：务必或者看在老天爷的份上，看在上帝的面子上。多指纯粹的感叹，可译为：天哪、我的天、卧槽、我擦、去你的…………例句：Could you just leave me alone, for goodness' sake?（我的天哪！ 你能让我一个人呆着吗？）    Oh, for god's sake, this is my new dress and now it got stains.（我的天哪， 这是我的新买的衣服啊，现在弄脏了。）