你必须积累大量的知识…

You have to accumulate a great deal of knowledge…

youdao

这是一项复杂活动，需要大量的知识积累。

It's a complex activity that requires a lot of intellectual effort.

youdao

这是一项复杂活动，需要大量的知识积累。

It's a complex activity that requires a lot of intellectual effort.

youdao