有用的英语怎么说

“有用的”英文表达方式常见的是useful，其反义词“没有的”英文表达可以说成是useless。

参考例句：

Serviceable instrument有用的器具A handy gadget.有用的小配件。Toads have an ugly appearance but they are useful.蟾蜍外表丑陋，但很有用。They have the custom to do the walls out with white paper他们有用白纸糊墙的习惯。Corn is a rattling multipurpose plant.玉米是一种非常有用的作物。His flounder is useless.他的挣扎一点都没有用。Build up a bank of useful addresses, references,information,etc建立一个有用的地址、参考书目、信息等的储存库Our food breaks down in the body into useful substances我们的食物在身体内分化成有用的物质。It provides a useful vehicle for transforming unsaturated acids to their corresponding alkenes它为使不饱和酸变成相应的烯烃提供了一个有用的中间体。In summary, creating a successful product requires more than delivering useful functionality.总的来说，创建一个成功的产品需要的不只是有用的功能。

useful是什么意思：adj. 有用的，有益的

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？