有没有谁能告诉我mother-in-law,brother-in-law的意思啊?

有没有谁能告诉我mother-in-law,brother-in-law的意思啊? father- in -law,mother-in-law,brother-in-law,sister-in-law怎么 uncle in law与brother in law 的区别 “brother-in-law"是什么意思? brother-in-law 复数 brother-in-law和brother有什么区别. sister-in-law 中in 和law之间有没有 -号? his brother-in-law和niece是什么意思 sister and brother-in-law a happy 请问2 brother-in-law 还是2 brother-in-laws son-in-law 的复数是不是sons-in-law step-son ,step-mother ,step-brother ,sister-in-law ,parent-i