急于 (jí yú): eager to; in a hurry to

He was in a hurry to catch his flight and rushed out without even eating breakfast.

She was eager to find a job, so as soon as she saw the recruitment ad, she submitted her resume immediately.

Xiaoming was eager to prove his ability and volunteered to take charge of the project, but ended up making mistakes due to lack of experience.

Don't rush to draw conclusions; wait until all the evidence is collected before making a judgment.