be committed to something
致力于某事
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Speaking at a high school in Virginia, he told children that each one of them had something to offer and they should be committed to whatever they did.
在佛吉尼亚一所高中讲话时，他告诉孩子们，每个人都有自己的责任，他们应该下定决心做他们正在做的事情。
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