来去自由: freedom to come and go; let them go and come of their own will
羁: [书面语]Ⅰ名词1.(马笼头) bridle; headstall 短语和例子无羁之马 a horse without a bridle2.(姓氏) a surname 短语和例子羁达 ji daⅡ动词1.(拘束) control; restrain 短语和例子放荡不羁unconventional and uninhibited2.(停留; 使停留) stay; delay