演练前需要培训吗英语作文

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Yesterday we organized the school boards. warning, and we'll assemble and ran towards the playground. in the stands, the headmaster announced the play ended. the acting was a success. let us in the real disaster occurs, can't panic, stay calm face

This afternoon, between classes,the school organized anearthquake drill.Before the drill started, theteachers carefully explained thesaftey and precautions.After the alarm sounded, we allhid in relatively safe places, suchas under the desks.