1.食言;打退堂鼓;退出
2.后退,后撤
1.to decide not to do something you agreed to do
2.to move out backward, or cause something to move out backward
1.If the person you were engaged to marry had an accident and become a paraplegic , would you go through with the marriage or back out of it?
如果你的未婚夫因为车祸瘫痪了，你会坚持和他结婚，还是退婚呢？
2.He thought some clawed thing clutched at his leg as he yanked himself back out onto the passageway, shaking from more than the cold.
他觉得，有一些长着爪子的什么东西，抓住了他的腿，他猛然向后挺身，退回到过道上，身子颤抖着，当然并不仅仅是因为他觉得冷。
3.In just a few weeks, members will be back out on the campaign trail, emphasizing the differences between the two parties.
在仅仅几个星期内，议员们将退出竞选跟踪活动，不再着重于两党的差别。
4.The comet made two passes around the Sun and in 1779 again passed very close to Jupiter, which then threw it back out of the solar system.
这颗扫帚星在太阳边上逛了一下，1779年又到木星边上挑衅，这次木星把它赶回了外太阳系。
5.He brings her the tickets, collects the money, and then goes home and has his sockpuppet bidder back out of the deal with her.
他给了她票，收好钱，然后回家，撤销了对她的合约起诉。
6.Note that the core DOM API does not give you methods to either parse XML data into a DOM, or to serialize the DOM back out to XML.
注意，核心DOMAPI并不能使您将XML数据解析到DOM，或者将DOM序列化为XML。
7.Unlike Generals this was a targetted ability, they automatically fire in this mode until you switch them back out of it.
与将军里不同，这不再是一个需要目标的能力，在这个模式下他们可以自动发射，直到你切换他们的状态。
8.I said good-bye, my hand closed around the business card in my pocket, and went back out into the cold winter evening.
我用手紧紧握住兜里的名片，说了声再见，就走回那寒冬的夜色之中。
9.If there was an issue with the migration, I could easily back out to the previous release of AIX.
如果迁移出现问题，我可以轻松地返回前一个AIX版本。
10.The next thing I knew the house parent came walking back out of the back door by the garbage room and started yelling at me.
我所记得的下一件事便是宿舍管理员从垃圾房旁边的后门走了回来，开始冲我大骂。