汤姆本应该遵守规则。

Tom should've obeyed the rules.

Source: Tatoeba

Sentence Composition

1 汤姆 Tāngmǔ Tom (name)
2 本应 běnyīng should have; ought to have
3 该 gāi
  1. should
  2. ought to
  3. probably
  4. must be
  5. to deserve
  6. to owe
  7. to be sb's turn to do sth
  8. that
  9. the above-mentioned
4 遵守 zūnshǒu to comply with; to abide by; to respect (an agreement)
5 规则 guīzé
  1. rule; regulation
  2. regular; orderly; fixed