Roll over and try the same exercise on your back.

翻身，背部做同样的运动。

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Roll the casualty back over the blanket roll to lay face up on the blanket.

将伤员的背部滚到毛毯上，使其面部朝上。

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Roll the casualty back over the blanket roll to lay face up on the blanket.

将伤员的背部滚到毛毯上，使其面部朝上。

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