事故發生時，敬勿使用電梯，請使用樓梯。

In an emergency, use the stairway, not the elevator.

Source: Tatoeba

Sentence Composition

1 事故 shìgù accident

classifiers: 樁, 起, 次
2 發生 fāshēng to happen; to occur; to take place; to break out
=3 時 Shí surname Shi
=3 時 shí
  1. o'clock
  2. time
  3. when
  4. hour
  5. season
  6. period
4 敬 jìng
  1. (bound form) respectful; to respect
  2. to offer politely
5 勿 wù do not
6 使用 shǐyòng
  1. to use
  2. to employ
  3. to apply
  4. to make use of
7 電梯 diàntī
  1. elevator
  2. escalator

classifiers: 臺, 部
=8 請 qǐng
  1. to ask
  2. to invite
  3. please (do sth)
  4. to treat (to a meal etc)
  5. to request
=8 請 qīng only used in 請室／请室 (qīngshì)
9 使用 shǐyòng
  1. to use
  2. to employ
  3. to apply
  4. to make use of
10 樓梯 lóutī
  1. stair
  2. staircase

classifier: 個