未經允許請勿進入這個房間。

Don't enter the room without permission.

Source: Tatoeba

Sentence Composition

1 未經 wèijīng
  1. not having undergone
  2. without (having gone though a certain process)
2 允許 yǔnxǔ
  1. to permit
  2. to allow
3 請勿 qǐngwù please don't
4 進入 jìnrù
  1. to enter
  2. to join
  3. to go into
5 這個 zhège
  1. (pronoun) this
  2. (adjective) this
6 房間 fángjiān room

classifiers: 間, 個