open-eyed
adjective uk/ˌəʊ.pənˈaɪd/ us/ˌoʊ.pənˈaɪd/
睁大眼睛的;难以置信的（尤指不敢相信眼前的事情）
with your eyes completely open, especially because you find it difficult to believe what you are seeing or feeling
open-eyed amazement 目瞪口呆
He stared open-eyed at all the food on the table. 他目瞪口呆地看着满桌的食物。