投递

tóu dì rén yuán

投递人员

postman

xìn shang de dì zhǐ bù míng wú fǎ tóu dì

信上的地址不明，无法投递。

Owing to its unclearly written address, this letter is undeliverable.

wú chù tóu dì

无处投递

undeliverable

tóu dì bào kān

投递报刊

deliver newspapers

tóu dì xìn jiàn

投递信件

deliver letters

rú guǒ wú fǎ tóu dì qǐng tuì huán jì xìn rén

如果无法投递，请退还寄信人。

If undelivered, please return to sender.

yīn wèi dì zhǐ zì jì bù qīng zhì shǐ xìn jiàn wú fǎ tóu dì

因为地址字迹不清，致使信件无法投递。

It is impossible to deliver this letter because the address is illegible.