If you are serious about our relationship, you should make a commitment. 如果你对我们的关系很认真，你就应该给个承诺。
He made a commitment to pay the rent on time. 他保证按时付房租。
It saddens me to recall that I assured him that I had no expectations of a long-term commitment. 现在回想起来，我为我一开始就向他保证说我也不期望一段长期的关系而伤感。
It has been argued that this anticipated the punctuated equilibrium hypothesis, but other scholars have preferred to emphasise Darwin's commitment to gradualism. 有人认为这加快了间断平衡假说的发展，但其他学者倾向于强调这表明了达尔文对渐进论的信奉。
We want to demonstrate our commitment to human rights. 我们想表明我们为人权而献身。
They are looking for someone with a real sense of commitment to the job. 他们正在找一个对这一工作有献身精神的人。
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