Equally clearly, int or double may not: find uses the expression *first, and the dereference operator makes no sense for an object of type int or of type double.

同样的，或者不是int 和double：find使用表达式 *first，这个废弃的操作使int对象或者double对象没有意义。

youdao

Listing 15 applies the decltype operator on a variable and shows the usage of the operator with an expression.

清单15对一个变量应用decltype操作符，演示对表达式使用这个操作符的方法。

youdao

Right-click the first output port (Output) of the Regular Expression Lookup operator and select Create suitable table from the context menu.

右键单击 Regular Expression Lookup 操作器的第一个输出端口 (Output)，从上下文菜单中选择 Create suitable table。

youdao

And in Python the expression is, operand, operator, operand, when we're doing simple expressions like this, and if I give it to the interpreter, it gives me back exactly what you'd expect, which is that value. OK?

在Python中表达式就是，运算对象，操作符，运算对象，当我们处理这样的简单表达式的时候，我把表达式传给处理器，处理器给我返回了我想要的结果，对不对？

麻省理工公开课 - 计算机科学及编程导论课程节选