關上窗戶啊。

Make sure you close the windows.

Source: Tatoeba

Sentence Composition

1 關上 guānshàng
  1. to close (a door)
  2. to turn off (light, electrical equipment etc)
2 窗戶 chuānghu window

classifiers: 個, 扇
=3 啊 ā
  1. interjection of surprise
  2. Ah!
  3. Oh!
=3 啊 á
  1. interjection expressing doubt or requiring answer
  2. Eh?
  3. what?
=3 啊 ǎ
  1. interjection of surprise or doubt
  2. Eh?
  3. My!
  4. what's up?
=3 啊 à
  1. interjection or grunt of agreement
  2. uhm
  3. Ah, OK
  4. expression of recognition
  5. Oh, it's you!
=3 啊 a modal particle ending sentence, showing affirmation, approval, or consent