这枚戒指象征着他们的承诺。

The ring symbolizes their ___commitment.

他承诺每天早起锻炼身体。

He made a ___commitment to wake up early and exercise every day.

她对环保事业的坚定承诺令人钦佩。

Her strong ___commitment to environmental protection is admirable.

她因为工作安排不能参加我们的聚会。

She can't attend our party because of work ___commitments.