我们正计划下个月去山里旅行
We are planning to go to the mountains to travel next month
我很高兴接到你的邀请
I am very glad to receive your invitation
他必须为即将到来的考试努力学习
He must study hard for the coming exam
你经常收到你爷爷奶奶的来信吗?
Do you often hear from your grandparents letter?
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