功用的英文：
function; use

参考例句：

Functional definition
功用定义

The function of a soap, like that of any detergent, is to make it possible to mix oily materials with water
肥皂的功用就象任何去垢剂一样，能使油性物质与水相混合。

The second fruit of friendship, is healthful and sovereign for the understanding, as the first is for the affections
友谊底第二种功用就在它能卫养并支配理智，有如第一种功用之卫养并支配感情一样。

The second fruit of friendship,is healthful and sovereign for the understanding,as the first is for the affections.
友谊的第二种功用就在它能卫养并支配理智，有如第一种功用之卫养并支配感情一样。

function是什么意思：
n. 官能，机能；功能；职责，职务；函数
v. 工作；活动；运转，运作；起作用

function requester
功能请求者

norm functional
范数泛函

The divergence of a vector function is the scalar function
矢量函数的散度是一个标量函数。

A functional is a kind of function where the dependent variable is itself a function.
泛函就是自变量本身为函数的一数函数。

The frequency response function includes an aerodynamic transfer function
频率的主函数包括主动力传递函数。

use是什么意思：
v. 用，运用；对待；耗费；服食；利用
n. 使用；用途

It is used as a reflexive.
它被作为反身代词使用。

That was a balk to us.
那对我们是个挫折。

They help us to be maximal encouraging to us.
他们来帮助我们对我们是个极大的鼓舞。

Already used and therefore unavailable for further use.Used of taxonomic names.
已占用的已经使用因而不能再作他用的。用于分类学名称

Why use wood when you can use plastic?
既然能用塑料，何必非用木料？