significant meaningful

A fourth idea raised in the book is that individuals naturally gravitate toward what is most meaningful and deeply significant.

第四个想法在书中提出的是，个人自然倾向于什么是最有意义的和具有深远意义。

Because organic social networks arise from local relationships, they can provide meaningful and significant forms of support.

因为有机社交网络起源于本地关系，所以它们可以提供有意义且数量众多的支持。

In my opinion, limiting the use of disposable plastic bags is a significant and meaningful measure or policy to decrease environmental pollution as well as save social resources.

在我看来，限制使用一次性塑料袋是一项用来降低环境污染并节省社会资源的重要的，有意义的措施或政策。