What are you going to do this afternoon, Lingling?

今天下午你们打算做什么，玲玲？

We are going to plant trees.March 12th is our Tree­-planting Day.

我们打算植树。3月12日是我们的植树节。

Planting is fun.Please join us.

栽种很有趣。请加入我们。

Do you have Tree­-planting Day?

你们有植树节吗？

Yes.In the U.S., it is in April.

有。在美国，它在四月