If we are in a fire, first of all, we should keep silent. We cant be so nervous that we will do something terrible. We may take a deep breathe and then find the way to save ourselves carefully. We cant jump out of the windows unless there is not another way to get out because its too dangerous. We need a piece of wet paper to cover our nose and mouth to help keep off the smoke.
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最新
2016-02-29
2016-02-29
2016-02-29
2016-02-29
2016-02-29
2016-02-29