1·She told the reporter that sleep is when the human brain mixes information into its collection of knowledge.
她告诉记者，睡觉时，人类大脑会将信息混合到其知识集合之中。
2·The Romans observed that, when volcanic ash mixes with water and then cools, it gets extremely hard and almost impossible to break up.
罗马人观察到，当火山灰与水混合然后冷却，火山灰变得非常坚硬，几乎不可能分解。
3·This heated air, drawn down from the roof, then mixes with the greenhouse air as it reaches a second sea-water-moistened cardboard wall at the back of the greenhouse.
从屋顶吸出的这种热空气，在到达温室后部第二个被海水润湿的纸板壁时，便与温室空气混合。
4·This gas is hydrogen sulfide, rises up and mixes with oxygen in the underground water that sits in the cracks and fissures in the limestone.
这种气体是硫化氢，上升后与石灰岩裂缝中地下水的氧气混合。
5·As the ocean surface warms, it mixes less with cooler, deeper waters, which contain much of the oceans nutrients, the Nature study says.
《自然》的研究表示，海洋表面变暖，与较深、较冷的水域混合变少，更深的水域包含很多海洋的养分。