柯林斯詞典good afternoon 1. CONVENTION You say "Good afternoon" when you are greeting someone in the afternoon. 下午好[正式] 返回 good afternoon劍橋詞典something you say to greet someone politely when you meet them in the afternoon （午后見面時的問候語）下午好，你（們）好 比較afternoon exclamation 范例 Good afternoon, children !Good afternoon, everyone. 返回 good afternoon