您要查找的是不是：
- trace missing mail matter 追查丢失邮件
- An investigation or inquiry organized to trace missing goods or persons. 追踪调查为查找失踪物品或人员而组织的调查或询问
- The family are trying to trace the missing dog. 全家人正在设法找寻失踪的狗。
- The police are trying to trace the missing man. 警方正在设法寻找那位失踪的男子。
- The police are trying to trace the missing man . 警方正在设法寻找那位失踪的男子。
- The post office tried to trace the lost letter. 邮局设法查出那封丢失的信。
- The kids are learning to trace the letter. 孩子们学描字母。
- an investigation or inquiry organized to trace missing goods or persons 为查找失踪物品或人员而组织的调查或询问
- He likes to trace the origins of all things. 什么事他都喜欢推本溯源。
- The steps are easy to trace back. 易于将这些步骤倒退回去。
- It is hard to trace the order of discovery. 很难查出谁是最先发现的人。
- The police do all that they can do to trace him. 警察千方百计追捕他。
- They tried to trace the rumour to its source. 他们试图追查谣言的根源。
- So far,he has only been able to trace out a policy. 目前，他仅仅能草拟出一项政策。
- By this time anonymous letters were getting to be an important part of my mail matter. 那时我所收到的邮件中，匿名信占了重要的部分。
- Our efforts to trace him turned up nothing. 我们辛辛苦苦跟踪他，却无功而返。
- The phone company was unable to trace the call. 电话公司查不出这个电话是从哪儿打来的。
- Apply heavy line weight to trace the light sketch. 再加上重线条在之前的草图上。
- Means to trace back to or to date from. 用在这裡是指探索事物的由来。
- Please use a method with ability to trace shipment. 请使用能跟踪送货的方法。
