adj. refluent ; contranatant
adv. upstream
现在研究人员正在测试肠胃舒泰和N -甲基吡啶的混合物，人体测试将确定这是否会有胃酸逆流的可能。
Now the researchers are test roasting a stomach-soothing N-methylpyridinium blend. Human trials will determine if it has all the boldness with none of the reflux.
这样做不仅能避免体重额外增加，还能降低食道胃酸逆流的风险和罹患其他加重睡眠问题的消化系疾病的可能。
Not only could it help prevent extra weight gain, it can also lower the risk of gastroesophageal reflux and other digestive problems that may compound sleep problems.
例如，在桥梁的建造中，罗马人发现如果逆流的桥梁支撑部分是“V”型的，尖冲着水流，那么支撑部分会存留更长时间。
In bridge building, for example, the Romans discovered that if the upstream bridge supports were shaped as a "vee" and pointed into the current, they would survive longer.
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