求翻译：我们的集合时间是7点30分，在学校大门口。我们骑着自行车到北湖公园去植树，三个小时里我们一共植树100多株树苗，种完以后我们都很高兴，植树不但可以防凤防沙，还可以美化环境，希望大家都可以多植树，为我们的家园添一份色彩是什么意思？

Our collection time is 7:30 at the school gate. We rode the bike to the North Lake Park to plant trees, three hours, a total tree planting over 100 tree seedlings, planting, we are very pleased to planting trees not only can prevent the phoenix sand prevention, but also beautify the environment, I h

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正在翻译，请等待...

Our time is a collection of 7:30, at the school gate. We rode the bikes to North Lake Park to plant trees, more than three hours we have planted more than 100 trees, species then we are happy, planted not only against Phoenix and against sand, can also beautify the environment, hope we can plant tre

正在翻译，请等待...