力争 (lì zhēng): 열심히 일하다.

All employees of the company are striving to complete this important project by the end of the year.

In order to achieve good results in the competition, he trains hard every day, striving to break his own record.

This startup company is striving to become a leader in the industry within five years.

She strove to persuade her parents to support her studying abroad, and in the end they agreed.

The government is striving to reduce the unemployment rate next year; to this end, it has introduced several new policies.