他們應該十點前到。

They should arrive by ten o'clock.

Source: Tatoeba

Sentence Composition

1 他們 tāmen they; them
2 應該 yīnggāi ought to; should; must
3 十點 shídiǎn ten o'clock
4 前 qián
  1. front
  2. forward
  3. ahead
  4. first
  5. top (followed by a number)
  6. future
  7. ago
  8. before
  9. BC (e.g. 前293年)
  10. former
  11. formerly
5 到 dào
  1. to reach; to arrive
  2. to leave for; to go to
  3. to (a place); until (a time); up to (a point)
  4. (verb complement indicating arriving at a place or reaching a point)
  5. considerate; thoughtful; thorough