... rolling backstroke flip turn 仰泳翻滚转身 roll to each side 两侧摆动 rope for practice 练习用绳 ...
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Unroll the blanket and then roll the edges of the blanket to each side of the casualty.
展开毛毯，重新将毛毯的边卷向伤员两侧。
It can make the aircraft roll to the right as it creating different life on each wing and it also make the aircraft have a left heading by hitting the rudder from the left side.
侧风会使飞机在左右两个机翼上产生不同的升力，让飞机产生向右侧的滚动。同时，风力对方向舵的打击也会改变机头的指方。
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