皇宮警衞森嚴。

The palace was heavily guarded.

Source: Tatoeba

Sentence Composition

1 皇宮 huánggōng imperial palace
2 警 jǐng
  1. to alert
  2. to warn
  3. police
3 衞 wèi
  1. variant of 衛 wèi
  2. to guard
  3. to defend
4 森嚴 sēnyán
  1. strict
  2. rigid
  3. tight (security)