用be free/ free of charge/travel free/ 造句 尽量多点～

be free of 等于be free from 用be free/ free of charge/travel free/ 造句 尽量多点～ be free of与be free from 的区别 be free of be free from 的区别 be free of和be free to的区别?! be free from /of的中文be free from be free of be free of 有哪些意思? Free free free free free free free Free free of和be free of 急free of和be free of 的区别,是一样意思吗,各给我一个例句 be free from be free of 区别如题 意义一样么? be free与have free的区别