電梯內不准吸煙。

You may not smoke in the elevator.

Source: Tatoeba

Sentence Composition

1 電梯 diàntī
  1. elevator
  2. escalator

classifiers: 臺, 部
=2 內 nèi
  1. inside
  2. inner
  3. internal
  4. within
  5. interior
=2 內 nà
  1. (obsolete on its own in Standard Chinese) Original form of 納／纳 (nà, “to pay”).
  2. (obsolete on its own in Standard Chinese) to enter
  3. Original form of 納／纳 (nà, “to pay”).
  4. to enter
=3 不准 bùzhǔn
  1. not to allow
  2. to forbid
  3. to prohibit
=3 不准 bùzhǔn to be inaccurate
4 吸煙 xīyān to smoke