请问"sisters by chance,friend by choice."的意思?

请问sisters by chance,friend by choice.的意思? by chance中的chance是什么意思? not by chance是什么意思 Not By Chance 歌词 by an ill chance 请问Best sisters中文是什么意思? by chance的英语造句 用by chance 造句 急 NOT BY CHANCE ALONE怎么样 by chance的同义短语 请问Chance is our by chance和 by coincidence的区别 by design or by chance 是什么意思 by chance,by accident什么意思? it was from words dropped by chance that,little by little,everything was revealed to me.请问 it was from words dropped by chance that 这一句 dropped 怎么理解 它的前面是否省略了 that is by mistake by chance by accident有什么区别? I ran across him by chance. caused by chance 用一个单词代替