您要查找的是不是：
- The city has taken the old streetcar tracks up. 这座城市已经把旧的电车轨道拆除了。
- Wipe your feet well. I don't want you to track up my new rug. 把脚擦干净，我不愿你踩脏我的新地毯。
- Wipe your feet well, or you will track up my new rug. 把脚擦干净, 要不就会踩脏我的新地毯。
- For sequenced sources, just transpose the track up a fifth. 为了达到有序的音源，只要将音轨升到第五音即可。
- Wipe your feet well because I don't want you to track up my new rug. 把你的脚好好擦干净，我可不愿意让你把我的新地毯踩脏。
- For DHL or Euro Express, track up to 10 numbers - press 'Enter' or hit the 'Spacebar' to separate. 如果是DHL或欧洲快递的快件,最多可以跟踪10个号码-按'回车'或'空格'键将号码分隔开。
- Use e-mail to track up to 50 express shipments without full internet connection. 即便互联网连接受限,使用电子邮件也可以查询一次多达50票快件的转运状态。
- DHL eTrack can track up to 50 air waybills at one time and operates on any e-mail-enabled device, whether it be a PC, mobile phone or handheld device. DHL eTrack每次可追踪多达50张空运提单,并且可在任何可收发电邮的仪器上使用,包括个人电脑、流动电话及其他手提设备。
- You can track up to 25 UPS tracking numbers in a single e-mail. 您最多可以在一封电子邮件内追踪25个UPS追踪编号。
- In the poll， 81 percent of respondents said they believed things have pretty seriously gotten off on the wrong track， up from 69 percent a year ago and 35 percent in early 2002. 在民意调查中有81%25的被调查者表示，他们认为美国在错误的道路上下滑，情况已经相当严重，持此观点的人去年为69%25，而2002年初仅有35%25。
- All those people really tracked up the floor, it will take me hours to clean. 那些人真的把地板踩脏了，需要花费我几个小时进行清理。
- Don't track up my clean floor. 别把我干净的地板踩脏了。
- It can also track up to 100 aircraft in a “low activity” mode, which depends on transponder system “identification friend or foe,” or IFF, for aircraft that cannot carry the NACTS pod. 它还可以在“低烈度”模式下跟踪100架以上的飞机，这种情况下对那些无法携带NACTS挂舱的飞机由异频雷达收发机系统来“辨别是友机还是敌机，”简称IFF。
- How much do all these figures stack up to? 这些数字的总和是多少？
- Swimming is the best way to tone up your body. 游泳是健体强身的最好方法。
- I believe he has started reading up anthropology. 我相信他已开始攻读人类学。
- It is now our aim to set up a factory. 我们现在的目的是创办一座工厂。
- I need a piece of string to tie this parcel up. 我需要一根细绳把这包裹扎起来。
- Our pilotless rocket enters the track of the earth. 我们把一个无人驾驶的火箭送入了地球的轨道里。
- She drives carefully up the rocky lane. 她驾车小心地从这条很多石头的小路上驶过去。
