你們還有牛奶嗎？

Do you guys have any more milk?

Do you have any more milk?

Source: Tatoeba

Sentence Composition

1 你們 nǐmen you (plural)
2 還有 háiyǒu
  1. there still remain(s); there is (or are) still
  2. in addition
3 牛奶 niúnǎi cow's milk

classifiers: 瓶, 杯
=4 嗎 má (coll.) what?
=4 嗎 mǎ used in 吗啡 mǎfēi
=4 嗎 ma (question particle for "yes-no" questions)