大家都搜：
n.援助，帮助；后备人员，备用物品；备份，副本；堵车
adj.备用的，后备的；备份的
1、back this up───支持这个
2、back up───v.支持，援助；（资料）备份；DaoTui；裱；堵车；vi.<篮球>协防，补防; 支持; 堵塞; 复制; 往后退
3、back up lp───备用lp
4、competently back-up───胜任后备
5、back is up───后退
6、back up into───后退到
7、pop back up───重新爆发
8、come back up───回来吧
9、back sb up───支持某人
1、There is no emergency back-up immediately available.───没有立即就能获得的后备。
2、You can back up another two feet or so.───你可以再退两英尺左右。
3、Mole carried the diamond back up the steep bank. It was hard work. The diamond had become wet and slippery and was very difficult to hold.───鼹鼠抬着钻石往斜坡上走。它是个艰巨的任务。钻石变得越来越湿淋淋的，越来越光滑，越来越不好拿。
4、He stopped as he felt the beanstalk shake, then frantically began to climb back up to safety.───怪物感觉到豆茎摇晃起来，便疯狂地往回爬，想回到安全的地方。
5、The paper, as if trying to tease them all , first flew downwards and then went back up , like being possessed.───可那张纸仿佛要存心DouNong大家，飞起又落下，落下又飞起，像附了魂一样。
6、get back up. everybody knows to get back up because as if I was walking. i ain't get anywhere.───站起来，如果走路时跌倒每个人都知道站起来，但是我却不能动了。
7、The inventive device and method can be widely applied to operation of restoration by a system back-up for a computer.───本发明装置及其方法广泛应用于计算机进行XiTong备份还原的Cao作。
8、Finally, KB came back up to the loft, chilled for a bit and then went home to see his family.───然后KOBE又回到了这间阁楼，寒暄了一下后就回去和家人团聚去了。
9、That sort of attitude really gets my back up!───那种态度实在叫我恼火！
1、We can use him as a back-up if one of the other players drops out.