meaningful
/ˈmiːnɪŋf(ə)l/📚 3805 25 2六级托福If you describe something as meaningful, you mean that it is serious, important, or useful in some way. 严肃的; 重要的; 有用的
adjective [原级]有意义的，重要的；（指眼神、姿势）意味深长的，意在言外的；浅显易懂的
She believes these talks will be the start of a constructive and meaningful dialogue. 她相信这些谈话将是一次建设性的、重要的对话的开始。
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