决心 (jué xīn): ความมุ่งมั่น

Although her parents opposed her going abroad alone to study, she still made up her mind to pursue her dream.

His determination to quit smoking is very strong; even when a friend offers him a cigarette, he doesn't take a single puff.

Facing the company's financial crisis, the manager is determined to carry out reforms; otherwise, it will be difficult for the company to survive.