力爭上游

Power; force; strength; ability; effort; influence; energy; to exert oneself; surname Li.

To strive for or compete; to argue or debate; to contend or fight; a difference or gap; how or what (literary).

Indicates direction or position, opposite of down; the surface or top of something; to go up; to attend class; previous; superior; to send up.

To swim; to roam or travel around; to wander; to float or drift; a surname.