il travaille dur
He works hard so that he can study abroad.
Il travaille dur afin de pouvoir étudier à l’étranger.
He works hard to earn his living.
Il travaille dur pour gagner sa vie.
Since he has ambitions, he works hard.
Comme il est ambitieux, il travaille dur.
He has ambition, so he works hard.
Il est ambitieux, alors il travaille dur.