Economical? describes doing something that doesn't cost a lot of money, it's good value.

" 经济的" 是事没有花很多钱，很划算。

We have got on very economical so fur.

我们到现在为止过得很节约。

No, but every room's got new electric storage heaters which are very economical.

没有，不过每个房间都有新装的电暖器，非常经济实惠。

So they're surprisingly economical in conveying complex ideas in graspable ways.

好故事以易理解的方式传达复杂的想法，非常省劲儿。

And affordability matters, since it allows social equality and economical advancement.

而价格实惠是很重要的，因为它能够促进社会平等和经济发展。

Sometimes deciding what bricks to put down is also an economical choice.

有时候决定放什么积木也是一种精打细算。

Some villages are equipped with a modern and economical heating system.

一些村庄里安装了现代化的经济型供暖系统。

By keeping it as simple transparent and economical as possible.

让它尽可能简单、透明和经济。

A good manager should be economical in the use of his funds.

一位好的经理应该在金钱的使用上节约。

It's brought them into the money, they're now economical.

这让他们赚了钱，他们现在很经济。

This would also make recycling cheaper and more economical.

这也将使回收、经济。

Economical means " using or costing little money" .

Economical 的意思是“花少的钱”。

It's more economical to buy food in large quantities.

大量购买食物比较划算。

Okay, so budget-friendly is a lot like that word economical, right?

好的，所以预算友好型的东西很像那个词“经济实惠”，对吧？

So you could say, my grandma was very economical.

所以你可以这么说，我奶奶非常节俭。

Wouldn't it be more economical to amalgamate the bus and train repairs?

合并公交和火车维修站不是经济吗？

Shopping online is quick, easy, convenient and economical.

网上购物快捷、轻松、方而且经济。

So while economic describes anything economy-related or the success of a business, economical refers to avoiding waste.

也就是说，economic（经济的，有利可图的）是被用来形容跟经济方面的或者成功的生意的一个词。而economical（节俭的，合算的）的是不要浪费。

Economical is about using money carefully, so there's no waste.

economical 是谨慎地使用金钱，这样就不会浪费。

Such speed--testing can be vastly more economical than seeking the same result through controlled human trials.

这样的速度测试比通过控制人体试验寻求同样的结果要经济得多。