father ,Australian,China,jump每一个要有4个同类的单词
问题描述：
father ,Australian,China,jump每一个要有4个同类的单词
答
mother,sister,brother,cousin
答
father:mother,brother,sister,uncle ,aunt
Australian:Chinese,American,Japanese,British
China:Korea,Thailand,Ireland,Canada
jump:sit,stand,swim,hit