Bir insan Tatoeba'yı kullanarak dil öğrenir.
- By using Tatoeba one learns languages.
Bir huni kullanarak sıvıyı doldurabilirsin.
- You can pour the liquid by using a funnel.
... in the theory of economics, but whose interests were in how using this knowledge, you could ...
... So in general, you're well served by using-- ...