snail mail 信件

deliver
v. 递送
I'm sure we can get that delivered by tomorrow.
我相信我们明天以前就会送到。

fragile
adj. 易碎的
Fragile items inside. Please handle with care.
易碎物品，请小心轻放。

mail order
邮政划拨
Our products are available by mail order.
我们的產品可用邮政划拨。

mailman
n. 邮差
I'll wait for the mailman to bring me their reply.
我要等邮差带给我他们的答覆。

parcel
n. 包裹
Parcels over 70 pounds require oversized rates.
包裹超过七十磅重须付超重费率。

postage
n. 邮资
How much is the postage for a postcard?
明信片的邮资是多少？

postmark

v. 邮戳
The letter was postmarked from Taipei.
这封信盖著台北的邮戳。

printed matter
印刷品
The rate for printed matter is cheaper.
印刷品的费率比较便宜。

registered letter
掛号信
It will cost you slightly more than the amount of first-class postage to send a registered letter.
寄掛号会比平信邮资稍微贵一点。

return address
寄件人地址
Please make sure your return address is correct.
请确认您的寄件人地址是否正确。

sender
n. 寄件者
If a letter is found to be undeliverable, it will be return to the sender.
如果邮件无法投递，将会退回给寄件者。

zip code
邮递区号
The map clearly shows zip codes of Florida.
这张地图清楚标示佛罗里达的邮递区号。