听着，(大脑)这是我的硬盘，只有放入非常有用的东西才有意义。

Listen. This is my hard drive, and it only makes sense to put things in there that are useful. REALLY useful.

youdao

任何能提高农业效率的东西——能提高我们每英亩土地生产的农作物数量的东西——都是非常有用的。

Anything that can increase farming efficiency—the amount of crops we can produce per acre of land—will be extremely useful.

youdao

在有些方面这个东西是非常有用的，尤其是对于消费者来说可以找到符合他们意向的商品。

There are ways in which this stuff is very useful, in particular for consumers being able to find the products that fit their tastes.

youdao

I'd like is also very useful. You can use "I'd like" to ask for something.

'd like 也是非常有用的句型。你可以用它来表达你想要一些东西。

I'd like 课堂 - SpeakingMax英语口语达人