beg off

To ask to be released from something, such as an obligation

借故推辭，謝絕：要求從某件事，如一項義務(wù)解脫出來

We were invited to stay for dinner, but we had to beg off.

我們被邀請留下來吃晚飯，但我們不得不謝絕了

beg one's bread

(archaic)live by begging

(古)以乞討為生

beg the question

(of a fact or action) raise a question or point that has not been dealt with; invite an obvious question

（事實或行動）引發(fā)（人們考慮）尚未觸及的問題；引出多數(shù)人都能想得到的問題

assume the truth of an argument or proposition to be proved, without arguing it

未經(jīng)討論就認為某一有待證明的論點或主張正確；把尚無定論（或有待證明）的事當(dāng)作事實來看待；想當(dāng)然，主觀臆斷，武斷

beg to differ

beg yours

(Austral./NZ)I beg your pardon

(澳/新西蘭)對不起；請原諒

go begging

(of an article) be available for use because unwanted by others

（物品因別人不需要）隨時可用