Now formally I could have had this pointing off to another object containing 4, but that just seemed excessive, right?

当然我可以正式的把它指向,另外一个含有4的对象，但这有点多余对不对？

麻省理工公开课 - 计算机科学及编程导论课程节选

It contains an million tons of magnesium, 1,000,000 tons, which is more than has ever been produced in one year by all the magnesium plants in the world.

它含有一百万吨镁，一百万吨，那比我们每年世界各地,生产镁的工厂的总产量还要多。

麻省理工公开课 - 固态化学导论课程节选

The result of fertilization now is a new cell that is the union of the sperm and the egg, and it's called the zygote and it contains the diploid number of chromosomes, genes.

受精就是产生,一个精卵结合的新细胞,称为受精卵,它含有二倍体的染色体基因

耶鲁公开课 - 生物医学工程探索课程节选

And then of course, there's the word sugar itself and then things like high fructose corn syrup, so there are a lot of ways that sugar gets put into foods and you wouldn't expect it to be there.

当然,还有糖本身这个词,还有像高果糖玉米糖浆这类东西,所以食品中含有很多形式的糖,而且你不知道它的存在

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

I'll talk about what that means, encoding insulin means in a minute, but there's a gene that tells your body what insulin looks like and that gets transcribed but only in those cells that make insulin.

一会儿,我将会讨论基因编码胰岛素的意义,所有细胞都含有相同的胰岛素基因,它决定胰岛素的结构以及如何被转录,但是只有胰腺细胞才能产生胰岛素

耶鲁公开课 - 生物医学工程探索课程节选

So before a cell enters mitosis it has to have synthesized its DNA so it has two copies of all of its chromosomes.

所以在进入有丝分裂之前,细胞必须先合成DNA,所以它含有两套染色体拷贝

耶鲁公开课 - 生物医学工程探索课程节选