This can help reduce acid reflux when sleeping, as gravity keeps the acid in the stomach.
因为重力可以让胃酸流回胃里，所以这样有助于在睡觉时防止胃酸倒流。
2
This can help reduce acid reflux when sleeping, as gravity keeps the acid in the stomach.
这样利用重力的原理便可以减少胃酸倒流。
3
And the bottom adjacent to the lower flow turning slow, centrifugal force is small, the gravity flow from the outer edge of the inner edge, resulting in secondary reflux.