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
There's water on all sides, so going to the beach if it's sunny.
公园四面环水,所以天气晴朗时可以去海边。
Or this community that doesn't have safe drinking water so regularly children die of diarrhea because they cannot afford to treat their water, they don't have the fuel to boil their water or something.
可能还有这样一个地方,那里没有安全的饮用水,孩子们时常死于痢疾,因为他们拿不出钱对水进行处理,也没有燃料来把水烧开。
The opposite leaflet does the other thing, the water soluble part points down and the fat points up, so now you have thin region of fat which is surrounded on both sides by water.
相反的部位则有不同的情况,水溶性部分向下,而脂肪向上,所以现在就得到了,两侧均被水包围的薄层脂肪区域
There can be a supply of them, a storehouse of them that can build up in the body, and so day-to-day fluctuations become less of a problem with fat soluble then water soluble vitamins, because the body can go grab them from a storage depot, if you will.
从而在体内建立起一个供应源,一个脂溶性维生素仓库,这样一来,相比起水溶性维生素,脂溶性维生素的浓度不会每天剧烈波动,因为机体可以任意取用体内的储存
But this is a compound, right, it has some non-zero heat of formation from the elements. So is water, right?
但这是种化合物,对吧?,它具有非零的生成热,水也是一样,对吧?
That water is separated, that bubble has opened up so we've got the sky created And we've got the waters collected in certain areas down here, And we've got sky.
水流被分开,形成了水泡,我们便有了天空,在那里某些地方也有一些水流汇集,我们便有了天空。
So, instead of having the periodic variation of water, or the periodic variation of air density here we're talking about an electric field.
不像水或者空气密度的,周期变化,我们这里,讨论的是电场。
I've been teaching long enough to know that doing derivations in class is equivalent to pouring ice water on the proceedings, so I do this sparingly.
我已经教了这么长时间书,所以我知道在课堂上讲推导,就好像泼冰水一样,所以我在讲这个的时候很小心。
They had these characters that would operate according to water flow and so if you stepped on a certain panel, a swordsman would jump out with a sword.
园林中有很多人偶造型,可以运用水流来控制他们的动作,当你踏上相应的踩踏板,一个剑客便会跳出来向你挥剑
If everyone else is cutting down I don't have too, and if everyone else does cut down I don't have to, I end up using hot water and driving a big car and so on.
如果大家都想减排,我没必要跟风,如果别人真的减排了又与我何干,我照样用着热水,开着大排量汽车
So rowing, water polo, swimming, they're all like number one.
赛艇,水球,游泳几乎都是第一名。
So, we see the building of water holders in these places; there's a very striking one.
所以,我们在这些地方看到了蓄水建筑,有一个很惊人的蓄水池
Yeah. Suppose I choose it right down there I guess 0. Well, the tangent there will not even have an x intercept. So I'm really going to be dead in the water.
好,如果我选猜想数为0,好吧,这个点的切线甚至和x轴都没交点,所以在这儿这一原则,真的不起作用了。
Energy can flow across the glass but I put a lid on top, and so the water can't get out.
能量可以穿过杯壁流动,但是我在顶上加了盖子,所以水不能跑出来。
So, the active part of the thermometer could be water. It could be alcohol, mercury, it could be a piece of metal.
那么温度计的工作部分,可以是水可以是酒精,水银,可以是一块金属。
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