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常见例句

用作不及物动词 (vi.)

• Because congestion prevents ships heading back to pick up new cargoes, it has helped to push prices up further.
  由于拥堵使船只难以返回运载新的货物，起到了进一步推高价格的作用。
• Some drivers will switch to the bridge to shorten theircommute, but as the traffic builds up there the motorway starts to look like abetter bet, so some switch back.
  一些司机为了缩短行程选择走桥，但当桥上变得拥堵时，高速路似乎是更好的选择，因此一些司机又折返回来走桥。
• The fire won't burn because the flue is blocked up.
  因烟道堵塞火烧不起来。
• Clogged pipes backed up drain water.
  阻塞的水管堵塞了沟水。

用作及物动词 (vt.)

• She has almost nobody to take up for her.
  她几乎没有人支持。
• The people are at the back of the government.
  人民是支持政府的。
• The regime had been propped up by foreign aid.
  该政权是靠外国援助维持著的。
• He turned his back on his own family when they did need help.
  他的家庭正需帮忙时，他不予援助。
• The car backed up and hit the tree.
  汽车倒退撞在树上。
• The steps are easy to trace back.
  易于将这些步骤倒退回去。
• You can back up and restore full-text catalogs.
  可以备份和还原全文目录。
• This option will back up files on the volume.
  该选项将备份卷中的文件。
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