这
zhè - this
那
nà - that
哥哥
gēge - older brother
弟弟
dìdi - younger brother
口
kǒu - measure word for number of family members; mouth
姐姐
jiějie - older sister
妈妈
māma - mom
爸爸
bàba - dad, father
妹妹
mèimei - younger sister