Article7. Property obtained and contraband seized through acts violating the administration of public security shall be returned to the owner or confiscated according to relevant provisions.
第七条违反治安管理所得的财物和查获的违禁品，依照规定退回原主或者没收。
Return if undelivered.
无法投递，请退回原处。
I returned the letter unopened.
我把那封信原封退回了.
Undeliverable, returned to sender.
无法投递, 退回原处。
claim for restitutio
要求退回原物的请求权
Original mail returned on account of incorrect address.
地址不符，原件退回。
In case of non-delivery, return to (the) sender
(邮件用语)无法投递时, 退回原处。
Choose' Finished Write files and return to main menu.'.
选择“写入文件并退回主菜单”。
To get back to my original point.
回到我原来的主题吧！
The act of withdrawing or going back.
后退撤回或退回的行为
(biology) degenerative reversion of cells or tissue to a less differentiated or more primitive form.
（生物学）细胞或组织的退形性变化；退回较原始的特性。
If it is not accepted, please return it in the enclosed envelope.
如不合用，请将原稿装在所附信封内退回。
There are three main operations in the heat treatment of steel: hardening, tempering and annealing.
钢的热处理操作主要有三种，即：淬火，回火和退火。
Tending to go backward or recede.
退回的有后退或退回倾向的
They felt that it was a slap in the face when their gift was returned unopened.
他们的礼物原封不动地被退了回来，他们感到这是一个羞辱。
Sulfur recycle catalyst activeness decline reason and its preventive measures are analyzed.
分析了硫磺回收催化剂活性衰退的原因及防止措施。
The FDA rarely rejects such food ingredients from China, according to an AP analysis.
根据美联社的一篇新闻分析，FDA很少退回从中国进口的食品原料。
"If this card is returned unopened I'll know you aren't ready to reconcile yet, and I'll try again next year."
如果这张卡片原封退回，我明白你还不愿和解，那我将等到来年再试。