短语词组短语enter by force 闯入enter the city by bus 乘公共汽车进城enter by the back door 从后门进入;走后门to enter by the door 由门进去enter a building by force 强行进入Diseases enter by the mouth 通过口腔疾病输入;病由口进入;病从口入;疾病的进入口By Brief Enter Deep 由简入深 返回 enter by