talk big   (TTS發音)

speak boastingly； make exaggerated statements or excessive claims in order to impress people說大話；吹大牛；言過其實以期引人注目

    He always talked big, but never amounted to anything. 他總是誇口，但毫無成就。

    We dislike those who talk big and do nothing. 我們不喜歡那些專講大話而不做事的人。

    I don't believe all he says about the profits he is making; ever since I have known him he has liked to talk big. 我不相信他說他正在賺錢的那一套話，自從我認識他起，我就知道他愛吹牛。