gobsmacked

adj. 目瞪口呆的；大吃一惊的

v. 使窘困；使震惊；使完全不知所措（gobsmack的过去式）

中文词源

gobsmacked 目瞪口呆

gob, 嘴。smack, 打嘴，掌掴。

gobsmacked (adj.): also gob-smacked, by 1985, U.K. slang, from gob (n.2) "mouth" + past participle of smack (v.).

1. I was really gobsmacked when I saw your picture of a model wearing a hat with a toy airplane on it.: 看到你照片中的模特戴着一个顶上立着一架玩具飞机的帽子，我真是目瞪口呆。