你應該小心選擇朋友。

You should be careful in your choice of friends.

Source: Tatoeba

Sentence Composition

=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 應該 yīnggāi ought to; should; must
3 小心 xiǎoxīn
  1. to be careful
  2. to take care
4 選擇 xuǎnzé
  1. to select; to pick
  2. choice; option; alternative
=5 朋友 péngyou friend

classifiers: 個, 位
=5 朋友 péngyǒu
  1. (archaic) large number of retainers
  2. (archaic, Ming dynasty) designation given by government bureaucrats to Confucian students
  3. designation given by government bureaucrats to Confucian students
  4. large number of retainers