=1

你

nǐ

you (informal, as opposed to courteous 您 nín)

=1

你

nǐ

you (Note: In Taiwan, 妳 is used to address females, but in mainland China, it is not commonly used. Instead, 你 is used to address both males and females.)

2

來自

láizì

to come from (a place) From: (in email header)

3

北京

Běijīng

Beijing municipality, capital of the People's Republic of China (abbr. to 京 Jīng)

4

對不對

duìbùduì

right or wrong? Is it right? OK, yes? (colloquial)