Freshwater fishes live in water with very low salt concentrations.

淡水鱼生活在含盐量很低的水中。

Most fish, though, maintain a different internal salt concentration than their surroundings.

然而，大多数鱼体内的盐浓度与周围环境不同。

Their blood has higher salt concentration than the water they are surrounded by.

它们血液中的盐分浓度高于周围的水。

When you inhale saltwater, the higher salt concentration prevents the water from crossing into your lung tissue.

当你吸入海水时，高浓度盐水会阻止水进入你的肺部组织。

One with low salt concentration and one with high salt concentration.

一种盐浓度低，一种盐浓度高。

And osmosis is where you have two chambers that separate two levels of salt concentration.

渗透是你有两个腔室，将两个盐浓度水平分开。

And your body is doing exactly what we recommend people at home to do if they over salt something and that's try and dilute the salt concentration.

你的身体正在做的正是我们建议大家在家里做的事情，如果他们吃了太多的盐，那就是尝试稀释盐的浓度。

And not to get too up-close-and-personal here, but it’s also pretty warm up there, and kind of salty, with a salt concentration of about 0.9%.

不要在这里过于亲密，但那里也很暖和， 有点咸，盐浓度约为 0.9%。

And since the fresh water doesn’t match up with your internal salt concentration, there’s an uncomfortable feeling as they try to equalize and the water flows into your cells.

由于淡水与您体内的盐浓度不匹配，因此当它们试图平衡并且水流入您的细胞时会有一种不舒服的感觉。

And under the natural osmosis process, what happens is the water naturally transports across that membrane from the area of low salt concentration to the area of high salt concentration, until an equilibrium is met.

在自然渗透过程中，水会自然地从低盐浓度区域穿过膜传输到高盐浓度区域， 直到达到平衡。