Difference between to aim at and to try hard in Korean

목표하다·애쓰다

to aim at — 목표하다to aim at
목표하다 means to aim for something you want to achieve. You use it when talking about goals in school, work, sports, or daily life. It often describes a result you want, such as a score, a win, or arriving by a certain time.
How to say to aim at

to try hard — 애쓰다to try hard
애쓰다 means to make a strong effort to do something, even when it is difficult. You use it when someone is trying hard, being careful, or doing their best. It is often used for everyday actions like studying, speaking, finding something, or helping someone.
How to say to try hard

The difference

목표하다 is about setting something as a goal. 애쓰다 is about the hard effort you make to reach that goal.