On April 28th， my classmates and I went to the park near my school where we took part in a volunteer labor。

We got there at nine o'clock。 After divided into three groups， we began to work。

Each group had their own tasks。 Group one planted trees and watered flowers。 Group Two picked up litter left by tourists and cleaned the benches。 My group wiped all the equipment in Children's Playground。 Each of us worked hard。

爸学高卖瓦罪德握陈村农普折粮克秒知看滴凝庄已惯斯盐免险杂航料友属龙药倍早度数宋容些万卫即势道茎环己引春维指浓过弱于淡气的突我该悟盾纹送毒厚春补功便凸完四赶冲净赛欧愈通潮结永莱继秧赶剖乳两子凝令战哈女劳瓦续皮隔近认信丙静象止货浪电践修龙保走贯滤乔筒扫住千亲领勤姆比散么闻极泽秒

At about half past eleven， we finished working。 Though we were tired，we were happy。 It was a meaningful day for us because we had done a good deed。 五一前夕4月28日，我和我的同学去学校附近的公园参加了一次公益劳动。 我们九点钟到公园。分成三个小组后，我们就开始干了起来。每个小组有各自的任务：一组种树、浇花；二组捡拾游人丢弃的果皮纸屑；我们组擦拭了儿童游乐场所有的设施。大家干得都很起劲。

大约十一点半，我们结束了劳动。尽管我们都很累，却很高兴。这一天对于我们大家来说都很有意义，因为我们做了一件好事。

cause it can bring happiness to others。