在现在，只要保证表达式计算的结果是一个集合或者数组就可以了。

For now, just ensure that expression evaluates to a collection or an array.

youdao

函数编程是一种编程风格，它将关注点从执行命令转移到表达式计算。

Functional programming is a style of programming that moves the focus from executing commands to the evaluation of expressions.

youdao

将所有组件的可用性相乘得到一个整体的表达式计算其百分比。

Multiply the availabilities of all components together to get the overall availability, usually expressed as a percentage.

youdao

Literally, return the control from this function, and take the value of the next expression, and return that as the value of the whole computation.

正如字面意义上说的，从这个函数返回，然后取得下一个表达式的值,并把这个值作为整个计算的结果返回。

麻省理工公开课 - 计算机科学及编程导论课程节选

You might recall from grade school sometimes you put things in parentheses so that your addition happens first, then your multiplication, otherwise multiplication would happen by default first.

你们可能会想起小学时，将一些加法表达式,放在圆括号里，这样加法可以先计算，然后是乘法，否则，乘法默认先发生。

哈佛公开课 - 计算机科学课程节选

What I'm doing, by the way, here is I'm simply typing in expressions to that interpreter.

顺路说一下，我正在做的就是给计算器传入,一个表达式。

麻省理工公开课 - 计算机科学及编程导论课程节选