无牵无挂[wú qiān wú guà]
词典danci.911cha.com
词典without a tie in the world：无牵无挂。
词典be free of all constraints and attachments：无牵无挂。
词典无牵无挂
词典have no cares：无牵无挂。
danci.911cha.com
without a tie in the world; be free of all constraints and attachments; have no cares