1.支持,为...撑腰;堵塞,拦(水);【棒球】抢救后方;【计算机】把(文件等备份)
1.to give support to someone by telling other people that you agree with them
2.to show that an explanation or belief is probably true
3.to make a copy of information on your computer
4.if traffic backs up, or if it is backed up, the vehicles are in a long line and waiting to continue moving; if a toilet, sink, or drain backs up, or if it is backed up, water cannot flow through it because something is blocking it; if a system backs up, or if it is backed up, it has slowed down or stopped working because there is too much of something for it to deal with
5.to move backward a short distance
6.to make a car go backward
7.used for telling someone to return to something that was said earlier
1.to give support to someone by telling other people that you agree with them
2.to show that an explanation or belief is probably true
3.to make a copy of information on your computer
4.if traffic backs up, or if it is backed up, the vehicles are in a long line and waiting to continue moving; if a toilet, sink, or drain backs up, or if it is backed up, water cannot flow through it because something is blocking it; if a system backs up, or if it is backed up, it has slowed down or stopped working because there is too much of something for it to deal with
5.to move backward a short distance
6.to make a car go backward
7.used for telling someone to return to something that was said earlier
1.CNN has not been able to independently verify the information, but snapshots of the Web pages appear to back up the claim.
CNN至今无法证明该信息的真实性，然而网页截图似乎支持了这一说法。
2.One of the practical limits to the number of users supported on a single server is the time it takes to back up the mail storage .
对单个服务器上支持的用户数的一个实际限制是备份邮件存储所花费的时间。
3.Ser Barristan will have summoned a pair of sedan chairs to carry us back up to the banquet, but the climb can still be wearisome.
巴利斯坦爵士会叫来一对轿椅把我们带回宴席，但攀爬依旧累人。
4.When he did win the gold medal, the Greeks gave him a statue of Athena, and, presumably to fatten him back up , a lamb.
当他是终获得金牌时，希腊人赠予他一尊“雅典娜”塑像，而且还送给他一只羊，可能想让他重新长胖。
5.But after I stood back up, my dad's footsteps slowly became more confident. Only at that moment, I realized how much he cared for me.
可是我重新站起来时，他的脚步变得更有自信。只有在那一时刻我才意识到他又多么的爱我。
6.If you do not back up the log frequently enough, the transaction log can expand until it runs out of disk space.
如果不经常备份日志，则事务日志可能会展开直到占满磁盘空间。
7.After jumping back up to nearly 500, 000 in late April, weekly jobless claim figures have been trending back down in recent weeks.
在4月底失业人数重新回到500,000左右以后，最近几周每周的失业申请数都是逐渐减少的。
8.Ulysses' main transmitter no longer works and its back-up systems are also beginning to fail.
尤里西斯的主传送机已经坏了，后备系统也开始出问题。
9.When you are happy, deselect your marching ants by going back up to your Select menu at the top of your screen and choosing Deselect.
如果觉得满意，通过顶部的选择菜单的“取消选择”来取消行军蚂蚁线。
10.He just fluttered down from the perch, poked a seed in Baby's open mouth and went back up for his share and the next seed for Baby.
它只是舞动着翅膀飞离杆子，然后将一粒种子送进小鸟张开的嘴中，然后飞回去继续进食，接着又给小鸟喂食。