诱发原因：应为物理课一般都在下午。是人生理上最疲劳的时候！不过为了将来的选修！同志们，顶住，顶住，给我顶住！
Cause: should be physical courses are generally in the afternoon. When the physical fatigue! But for the future of the elective! Comrades, stand up, stand up, for I resisted!
诱发原因：应为物理课一般都在下午。是人生理上最疲劳的时候！不过为了将来的选修！同志们，顶住，顶住，给我顶住！
Cause: should be physical courses are generally in the afternoon. When the physical fatigue! But for the future of the elective! Comrades, stand up, stand up, for I resisted!
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