谁能帮我具体介绍一下twin这个词的用法 比如He has two ____ sons（双胞胎）一词怎样填

谁能帮我具体介绍一下twin这个词的用法 比如He has two ____ sons（双胞胎）一词怎样填 He has two sons,____ works as a chemist. He has two sons,who in the same company He has two sons who He has two sons,both of whom are teachers.和He has two sons b twin‘s的用法 twin是双胞胎是负数可为什么有This is twin's bedroom 呢,我会多给分的 1 .He has two sons.Both of 应该填whom还是who are teachers .2.He h 给我详细介绍一下worry的具体用法 He has two sons；both of （）Walk as chemicals.括号中 He has two sons,and ( ) are collage students. He has two sons,both of whom work as chemists. He has two sons,__________ work as chemists. He has two sons,1.and two of them are teachers.2.two of whom