ji4

to send by mail

xin4

a letter 

hang2kong1xin4

airmail

chao1zhong4

overweight

qing1 

to be light／gentle

de hua

if

gong1ke4

gram

jia1

to add

kuai4

to be fast

man4

to be slow

cai2

later than expected

feng1

M：for a letter

wang4le

to forget

xie3

to write

di4zhi3

address

ming2zi

name

gao4su4

to tell

ming2xin4pian4

postcard

gua4hao4xin4

registered letter

you2jian3

aerogramme

xin4feng1

envelope

ling3

to pick up

bao1guo3

parcel

chuang1kou3

window

chuang1zi

window

ba3

to bring the object before the verb

tong1zhi1dan1

notice （noun）

tong1zhi1

V：to notify

身分證

shen1fen4zheng4

ID card

tu2zhang1

seal；stamp

dai4

to bring

qian1ming2

to sign （your name）

lu3xing2she4

travel agency

ying3ben3

photocopy

song4

to send； to deliver；to give as a gift

chuan2zhen1

to fax

ai1ya

Oh no！

huai4le

It's broken

mei2guan1xi

It doesn't matter

you2ju2

post office

fei4yong4

fee

shi4qu1

urban district

bie2de

the others