first-cousin亲表兄妹
first t cousin第一代堂兄妹
first t cousin once removed远堂兄妹
the first cousin堂〔表〕兄弟〔姐妹
first problem of Cousin库赞第一问题
single first cousin亲表兄弟姐妹
male first cousin长堂兄
first cousin matings嫡亲表兄妹婚配
first cousin detail嫡亲表兄妹
N-COUNT(可数名词) Someone's first cousin is the same as their . Compare . 堂兄弟姐妹; 表兄弟姐妹 [oft with poss]