Dear 某某,
I'm going to hold a birthday party 时间in my house and I'll invite some classmates and friends to join.It'll start at 7:30 p.m..I live at 住处.You can take 坐几路车get off in 什么路下 Road Stop.My house is opposite to the bus-stop.It's easy to find because my house is red with its white door.（类似的,改动下就好.）
Your sincerely
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