A change in height across the courtyard is highlighted by the flow of water along a channel that drops down from the planted level to the cobbled floor and then funnels into a circular pond.
庭院中的高度变化通过沿着从种植水平下降到鹅卵石地板的通道的水流强调突出，最后汇聚成一个圆形池塘。
Sleep apnea is caused by the abnormal narrowing or blockage of the airways that allow air to flow into the lungs, which causes sudden drops in oxygen in the blood.
睡眠呼吸暂停因空气流往肺部的通道——气道——的不正常紧缩或堵塞引发，这会导致血液中的氧气含量骤然下降。
There are lots of blood flow to the stomach after a meal, a drop in blood pressure, brain oxygen and nutrition drops apparently, go to sleep may cause insufficient blood supply to the brain.
还有饭后大量的血液流向胃，血压下降，大脑供氧及营养明显下降，马上入睡会引起大脑供血不足。
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