agape

1. ADJ If you describe someone as having their mouth agape, their mouth is open very wide, often because they are very surprised by something. (通常是驚得)大張著嘴的; 瞠目結舌的[書麪] [v-link ADJ]

She stood looking at Carmen with her mouth agape. 她站在那裡看著卡曼，嘴巴大張著。