但如果LCROSS能成功提供证据，表明在月球表面人们看不见的沟壑中有水资源存在，那么LCROSS可能会有更多的实际应用。
But LCROSS could also have more practical applications if it succeeds in providing evidence of water deposits in the unseen trenches of the lunar landscape.
是因为你们面前这个大脑的存在-，你看不见，但其确实是存在的-，你们面前的这个大脑，和周四那个大脑是一样的。
Because the brain in front of you — you can't see it, but it's in front of you — the brain in front of you is the very same brain as the brain that you had in front of you on Thursday.
大部分人不会意识到微生物的存在，因为他们的肉眼看不见，但事实上，微生物占据了地球大约一半的生物量，而所有的动物加起来，也不过占地球总生物量的千分之一。
Most people don't realize it, because they're invisible, but microbes make up about a half of the Earth's biomass, whereas all animals only make up about about one one-thousandth of all the biomass.
因此这些神秘的物质是看不见的，但天文学家通过探测它们和普通物质之间的引力相互作用得知了它们的存在。
Therefore, these mysterious matters are invisible, but astronomers know about their existence through the exploration of the gravitational interaction between them and ordinary matters.
有传言称个中还存在秘密的金钱诱惑——用沃森的话是关系到“数不尽的钱和看不见的权”——类似谣言一直搅动着这个案件，尽管愈发平息，但影响犹在。
Rumours of secret financial inducements—of "Unlimited Money and Invisible Power", in Watson's words—swirled around the case, as, more quietly, they still do.
另一种爱像空气，它虽然无所不在，无所不包，但你看不见，摸不着，所以你常常不会意识到它的存在。可是一旦没有了这空气，你会感到一分钟也不能呼吸，无法生存。
The other kind of love is like the air:you are surrounded by it and you don't feel its existence, but if the air disappears, even for a minute, you cannot survive.
另一种爱像空气，它虽然无所不在，无所不包，但你看不见，摸不着，所以你常常不会意识到它的存在。可是一旦没有了这空气，你会感到一分钟也不能呼吸，无法生存。
The other kind of love is like the air:you are surrounded by it and you don't feel its existence, but if the air disappears, even for a minute, you cannot survive.
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