短语词组短语You do this by 你干什么这了do lessons by correspondence 通过函授进行学习do well by someone 对待某人很好do everything by rule 照章办事do event by oneself 单挑do that by halves 半途而废do sth by chance 碰巧Do it by system 用体系做事do sth by hand 靠手工 返回 do by