meaningful /ˈmiːnɪŋfʊl/

• 1. 

  ADJ 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

  例：

  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。

• 2. 

  ADJ A meaningful look or gesture is one that is intended to express something, usually to a particular person, without anything being said. 意味深长的 [ADJ n]

  例：

  Upon the utterance of this word, Dan and Harry exchanged a quick, meaningful look.

  这个字一出口，丹和哈里马上交换了一个意味深长的眼神．

• 3. 

  meaningfully ADV 意味深长地

  例：

  He glanced meaningfully at the other policeman, then he went up the stairs.

  他向另一名警察意味深长地扫了一眼，然后走上楼去。