相关单词同义词main reason, 近义词 parent 父母, occasion 场合, driving force 驱动力, motive force 原动力, impetus 推动力, dynamo [电]发电机；精力充沛的...临近词mains, mainsail相似词mainline, mainly, mainmast, mainsail, mainstay, mainstream, mainstream media, maintain, 返回 mainspring