one big younger sister and two small younger brothers
200
那是谁?
那是我大弟弟。(T)
Who is that?
It's my big younger brother.
300
你有兄弟姐妹吗?
我没有/有(兄弟姐妹)。
300
Who is she?
She is my good friend.(T)
她是谁?
她是我好朋友。
400
How many siblings do you have?
I have one elder brother, two younger brothers, two elder sisters. I have no younger sisters.
你有几个兄弟姐妹?
我有一个哥哥,两个弟弟,两个姐姐。我没有妹妹。
400
Who are they?
They are my big younger sister and small younger brother. (T)
他们是谁?
他们是我的大妹妹和小弟弟。
500
This is Li'an' family. There are 6 people in his family. They are his Mum, Dad, one elder brother, two younger sister and him. They are all British and they live in Hong Kong.