Translation of "얻으려면" in English

뭐, 문제는 에너지를 많이 얻으려면 몇 줌이나 모아야 한다는 거죠

Well, the thing is I'd have to collect handfuls and handfuls of this, to get much energy out of it.

하지만 활용할 수 있을 만큼 에너지를 얻으려면 많은 양을 먹어야 할 겁니다

But, I'd have to eat a lot of this stuff to get any significant amount of energy out of it.