He says the substances are especially dangerous because they travel through the air and stay in the atmosphere, soil and water.

VOA: special.2009.06.23

It can't enter cells because it's too big and it's too water soluble so it can't go through cell membranes.

它的分子太大了所以无法进入细胞,而且还是水溶性的,所以它也无法穿过细胞膜

耶鲁公开课 - 生物医学工程探索课程节选

Ask somebody, "What if you took a tube and you squirted water through it?

当问到,"要是你拿一根管子,向里面注水,让水喷出来

耶鲁公开课 - 心理学导论课程节选

Rinderpest can spread quickly through the air and in water containing waste from animals with the virus.

VOA: special.2010.11.02

And that's all that's big enough to pass through or small enough to pass through. And if we go up even just one row on the periodic table to potassium, what we actually see is now that it's going to be too large, and, in fact, a potassium solvated with one water molecule won't go through our channel.

就是这样刚好大到它通过,或者说刚好小到它通过,即使我们再沿着周期表往下走仅仅一行到钾离子，我们看到的就将是它的个头太大了，实际上，溶解于一个水分子的单个钾离子,不能穿过我们的通道。

麻省理工公开课 - 化学原理课程节选

This improves the growth of roots and increases the movement of water through the soil.

VOA: special.2009.06.30

Because of this my mother used to make Jell-o that had fruit suspended in it, and the fruit doesn't sink to the bottom like you'd expect it to sink through water, but it stays suspended inside.

正因为如此,当我母亲以前做,那种加水果的果冻的时候,水果并不会沉到果冻底部来,你以为它会像在水里那样,但水果是悬在果冻里的

耶鲁公开课 - 生物医学工程探索课程节选

His S-38 amphibian flew through the air and then landed on water.

VOA: special.2010.09.10

The water soluble vitamins tend to be used more immediately by the body not stored and excreted through the urine if consumed in excess, so the body can tolerate more variation in intake of these before you start getting toxicity than is the case with the vitamins on the right.

而水溶性维生素往往都立刻被身体所利用,不会被机体储藏,过剩部分由尿液排出,因此机体耐受过量水溶性维生素的能力,相比起右边这栏里的脂溶性维生素,可是要强得多了

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Water in blood carries hormones and antibodies through the body.

VOA: special.2010.07.27

We worked as our fathers did,". Now,the farmers plant their crops closer together and run water through narrow trenches.

VOA: standard.2009.12.10

Hundreds of houses were flattened and flooded by the two million cubic meters of water that ripped through the Dutch-colonial era dam.

VOA: standard.2009.03.28

The vessels will have the advantage of being able to navigate shallow water and squeeze through rivers.

VOA: standard.2010.01.04

She wonders what else they can do. For now,the Mahmoud family and others have no choice but to keep containers ready for the days when water does flow through the taps.

VOA: standard.2009.08.01

"That's why the city of Jakarta said no direct access to the community but we can provide them with the Master Meter, we can also provide them through water kiosks and also public hydrants."

VOA: standard.2010.08.04