求翻译：我们班举行了一个植树活动，我们今天7点来到大夫山植树，然后拿出工具，首先是挖坑，然后是把树放在坑里最后是浇水，我们今天种了50棵树，今天玩得真开心。是什么意思？

We held a tree planting activity, we came to the doctor today at 7:00 mountain tree planting, and then come up with tools, first digging, then the tree on the pit and finally water, we planted 50 trees today really enjoyed.

We held a tree planting activities, we went to doctor today 7 planting trees, and then come up with tools, first, dug a pit, and then the tree is placed in the pit, and finally, watering, and today we have a 50 trees, and today they will have a really happy.

Our class has held a tree-planting activity, we 7 o'clock arrive today doctor the mountain tree-planting, then puts out the tool, first digs the pit, then is places the tree in the pit finally is waters, we have planted 50 trees today, today plays really happy.

We held a tree-planting activities, we came to doctor tree-planting at 7 o'clock, and then come up with tools, beginning with digging, then put the tree in the hole and finally water, we planted 50 trees today, had a really happy today.

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