i am12 years old amy is15 years old 合成一句 i am什么什么younger than amy

i am12 years old amy is15 years old 合成一句
I am 【three years 】younger than Amy.
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不明白的再问哟,请及时采纳,多谢!4.he isn't a kind man ，i think合成一句i什么什么he 什么a kind man.5.i usuallyrelax in my swimming pool in my swimming pool 对此提问什么什么you usuallyrelax4. I don't think he is a kind man. 5. Where do you usually relax ?