大家好，
文章背景(写在其他段)是说联准会蒐集资料来阐述利率和银行准备金及银行借贷多寡的
关系。
段落如下：
Banks in our sample held about 60 percent of total reserves as of
December 2018. On average, the ratio of bank reserves to total assets is
4 percent. Also, total loans make up near two-thirds of our sample banks'
total assets, and loans held by our sample banks constitute a material
fraction of total loans extended by commercial banks.

= significant

非常感谢，一开始我查cambridge dictionary没有相关的意思，看了回复后再去查merriam webster就有类似的了！