极力 (jí lì): to make a supreme effort; at all costs

Despite the doctors' utmost efforts to save him, the old man still did not make it through the critical period.

She tried her utmost to control her emotions and not shed tears in front of her child.

At the meeting, he strongly recommended this plan, believing it could significantly reduce costs.

Even though his friends tried their utmost to dissuade him, he still decided to quit his job and go traveling.

In order not to worry his parents, he tried his utmost to put on a relaxed appearance.