每日雅思词汇：亲属关系知多少　　女婿 son-in-law; 　　媳妇daughter-in-law 　　姊夫/妹夫 brother-in-law; 　　嫂子 sister-in-law; 　　堂兄弟姊妹cousin; 　　遥生子only son; 　　血亲 blood relative; 　　单亲 single parent 　　继子 stepson; 　　继女 stepdaughter; 　　亲生父母 birth parents; 　　养父母 adoptive parents ; 　　遥 widow ; 　　鳏夫widower ; 　　外公 grandfather; 　　外婆 grandmother; 　　养父母adoptive parents; 　　养子adopted child