今天下午，我们进行了防震演习。
This afternoon, we had an earthquake drill.
我们的心情是非常激动的，老师安排前三排走前门，后四排走后门。余老师在广播里说上听到三声短哨就代表发生地震了，就要躲在桌子底下了。在听到一声长哨，就要从桌子下出来，双手抱头跑到操场上集合，我们一共做了三次，演习的前两次都没有最后两次时间短，都破了汶川大地震的一个中学的记录，他们全部下楼用了一分三十秒，我们只用了一分二十一秒就全部到了操场上，一个人也没有在教室里。这样，我们创下了一个新的记录。
Our mood is very excited. The teacher arranged for the first three rows to go through the front door and the last four rows to go through the back door. Mr. Yu said on the radio that hearing three short whistles meant that there was an earthquake and that he would hide under the table. When we heard a long whistle, we had to come out from under the table and run to the playground with both hands holding our heads. We did three times in total. The first two times of the drill were not as short as the last two. They all broke the record of a middle school in Wenchuan earthquake. They all went downstairs for one minute and thirty seconds. We only got to the playground in one minute and twenty-one seconds. No one was in the classroom 。 In this way, we set a new record.
通过这次演习，增加了我们的防震知识，又锻炼了我们的身体，是一次有意义的活动。
Through this exercise, we have increased our knowledge of earthquake prevention and exercised our bodies. It is a meaningful activity.
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