English translation of '哎'

叹

1. (表示惊讶或不满) oh
   ⇒ 哎！这么贵！ (Āi! Zhème guì!) Oh! It's so expensive!
2. (表示提醒) hey
   ⇒ 哎！别踩了那朵花。 (Āi! Bié cǎile nà duǒ huā.) Hey! Careful not to tread on that flower.