急于

急于 means 'to hasten to' or 'to be eager to.' It expresses a strong sense of urgency or eagerness to do something, often implying that the action is needed quickly or is highly important.

The character 急 (jí) means 'hasty,' 'urgent,' or 'eager,' while 于 (yú) is a classical preposition meaning 'in,' 'at,' or 'to.' Together, they form a phrase that conveys a sense of urgency or impatience.

急於 is commonly used in situations where someone is anxious or impatient to act. For example, it might appear in contexts like wanting to finish a task quickly or rushing to meet a deadline. It is often used in formal or literary contexts and can carry a tone of intensity or concern.