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Li Lei：
How many members are therein your family?
你们家有几口人？
Wang Fei：
There are four of us altogether. My father, mother, brother and I.
一共四口，我爸、妈、哥哥和我。
Li Lei：
How old are you? Can you tell me?
你多大了？能告诉我吗？
Wang Fei：
I’m seventeen.
我.. 17了。
Li Lei：
How old is your brother?
你哥哥多大了？
Wang Fei：
He is five years older than me.
他比我大.. 5岁。
Li Lei：
Then your parents are in their fifties. Am I fight?
那你父母今年.. 50多岁了，对吧？
Wang Fei：
Yes, I think they are.
我想是的。