短語詞組短語happen n to do sth 碰巧做某事sb happen to do 碰巧做某事Happen to do something 是指偶然做某事;偶爾碰巧做某事happen to do detail 碰巧做She happen to do sb 她是碰巧某人Someone happen to do something 某人碰巧正在做某事sb happen to do sth 某人碰巧做某事sth happen to do sth 某人出了某事somebody happen to do something 某人碰巧做某事 返回 happen to do