英文是：brag或者talk big。

解釋：brag英[br?g]美[br?ɡ]vt.自大，吹噓; 自夸，夸口說;n.自夸; 吹牛的人; 傲慢的態(tài)度; [游戲] 類似于撲克的一種紙牌游戲;adj.第一流的，極好的; 〈罕〉活潑的;[例句]He's always bragging about his prowess as a cricketer他總是吹噓自己板球球技的高超。talk big英[t?:k biɡ]美[t?k b?ɡ]v.說大話; 吹牛; 放空炮; 唱高調(diào);[例句]We dislike those who talk big and do nothing.我們不喜歡那種夸夸其談，不干實(shí)事的人。