在一楼有一个备用的卧室，这个卧室朝着两个露台中较大的一个打开，露台面向后方的花园。

On the first floor, a spare bedroom opens onto the larger of the two terraces, which faces into a rear garden.

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然而，退变更严重的椎间盘的行为反应不可预期，脊柱的伸展可导致椎间盘显著的向后方的膨出。

However, more degenerative discs behave less predictably, and spine extension may result in significant posterior disc bulging.

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如果手臂在水中是向前伸展则阻力会随之增加而向后方的反作用力也会出现，二者都会产生负加速度。

If an arm is stretched forward under water resistance is increased and a reaction force back ward is developed both of which would contribute to negative acceleration.

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