我不赞成你吸烟。

I don't agree with you smoking.

Source: Tatoeba

Sentence Composition

1 我 wǒ
  1. I
  2. me
  3. my
2 不赞成 bùzànchéng
  1. disapproval
  2. to disapprove
=3 你 nǐ you (informal, as opposed to courteous 您 nín)
=3 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.)
4 吸烟 xīyān to smoke