您要查找的是不是：
- Many software companies make an express provision for the user to make one back up copy. 许多软件公司明文规定要求用户进行一次副本备份。
- Back up a copy of the database encryption keys. 备份数据库加密密钥的副本。
- His condescending attitude really gets my back up. 他那种居高临下的恩赐态度实在使我很生气。
- If it doesn't help, restore the backed up copy and try 如果无效,备份后再尝试下面的方法
- His rude behavior really sets my back up. 他的粗鲁举动真令我生气。
- His rude behavior really puts my back up. 他的粗鲁举动真令我生气。
- The bus had to back up and turn around. 汽车得往后退，再倒过来。
- He drought along a file of document to back up his claim. 他随身携带一卷宗文件以便证实索赔要求。
- back up copy 副本
- The oil paintings are backed up with slats. 这些油画是用细木条做背衬的。
- Our criticisms of his actions just got his back up. 我们若批评他的行动，只能使他更加固执。
- The boss attached great importance to him,for he was able to knock up copy. 老板很器重他，因为他能赶着出稿。
- He hopped back up the stairs and took his pistol. 他赶紧返回到楼上，拿上了他的手枪。
- The boss attached great importance to him, for he was able to knock up copy. 老板很器重他，因为他能赶着出稿。
- The tepid vodka bunced back up into her throat. 微温的伏特加涌了上来，一直顶到她的喉咙。
- He got his back up when I said he was wrong. 在我说他错了的时候，他生气了。
- It was built back up from scratch after the war. 它是战后从瓦砾中重建起来的。
- Do you have any facts to back up all this? 你有可以证明这一切的任何事实吗?
- You can back up data locally or over a network. 你能地方性地或在一个网络之上备存数据。
- You'll have to back up and turn around. 你将不得不往后退并转身。
