son-in-law这里的law应该作怎样的含义解释?如果解释为“法律上”，那么安字面的意思变成：儿子在法律上。那为什么是女婿的意思呢？

son-in-law这里的law应该作怎样的含义解释?如果解释为“法律上”，那么安字面的意思变成：儿子在法律上。那为什么是女婿的意思呢？ son-in-law 的复数是不是sons-in-law son-in-law in law 和 by law的区别 The old man has two---- A son-in-law B sons-in-law C son-in-laws D sons-in-l觉等应该选A 可答案给的B 关于Law的词组有in law,for law,to law这几个词组吗 uncle in law与brother in law 的区别 step-son ,step-mother ,step-brother ,sister-in-law ,parent-in-law变为复数 请问sister in low mother in low?brother in low?能全面的说明就好.还有daughter in law?son in law? brother-in-law 复数brother-in-law 的复数是brothers-in-law The old man has two ().A.son-in-law B.sons-in-law C.son-in-lows son-in-law复数形式怎么样变?好像son-in-law和daughter-in-law这种单词,复数应怎样改变?把s加在哪儿? 我在书上看到一句句句子就是不懂.Son of one's brother(in-law) or sister(in-law).这句的中文意思. 谁知道以下单词复数形式和中文step-son step-mother step-brothersister-in-law parent-in-law sister-in-law的复数如题 daughter-in-law的复数是什么啊? mother-in-law的复数形式是什么 father- in -law,mother-in-law,brother-in-law,sister-in-law怎么变名词复数?