当科学家们将基因与特定疾病联系在一起的时候，往往不知道这些基因起什么作用——这些基因能产生何种蛋白质或控制哪个过程——还有什么因素会促使它们开或闭，激活或睡眠。

When scientists connect a gene to a disease, they often don't know what that gene does-the protein it makes or the process it regulates-or what factors turn it on or off, up or down.

youdao

系统可以是开系，可以是闭系，或是孤立系。

The system can be an open system, or it can be a closed system, or it can be isolated.

youdao

现在字符串不是用这种方式表达的，你没有看到字符串里有开括号闭括号，字符串中间也没有逗号，但是它有同样的属性。

Now it is not represented this same way. You don't see strings inside these open parens and closed parens.

youdao

The system can be an open system, or it can be a closed system, or it can be isolated.

系统可以是开系，可以是闭系，或是孤立系。

麻省理工公开课 - 热力学与动力学课程节选

Well at some level it is an ordered sequence of characters. Right? Now it is not represented this same way. You don't see strings inside these open parens and closed parens.

现在字符串不是用这种方式表达的,你没有看到字符串里有开括号闭括号,字符串中间也没有逗号,但是它有同样的属性。

麻省理工公开课 - 计算机科学及编程导论课程节选

It says, if I want to print out something I built in Cartesian form up here, says, again, I'm going to pass it in a pointer to the instance, that self thing, and then I'm going to return a string that I combine together with an open self and close paren, a comma in the middle, and getting the x-value and the y-value and converting them into strings before I put the whole thing together.

这不仅仅是个列表,它是怎么来做的？,流程是：如果我想要返回,一些已经在笛卡尔模式下建好的值，好，再说一遍，我首先要传入一个,指向实例的指针,也就是，然后我会返回一个,由开括号，闭括号,中间的一个逗号,以及提前转换为字符串格式的。

麻省理工公开课 - 计算机科学及编程导论课程节选