beg off什么意思解释？

I'll have to beg off . I have another engagement.恐怕我去不了了. 我另有个约会.We were invited to stay for dinner, but we had beg off.他邀请我们吃晚饭, 他这麽做真是太客气了.I'll try to beg off for an hour.我将设法请一小时的假....

beg off的音标：beg off的英式发音音标为：[beɡ ɔf]beg off的美式发音音标为：[bɛɡ ɔf]...