Certifications
n. [法] 认证；资质证书（certification的复数形式）
🗣️ 情景例句
A lot of people will agree with him.
许多人会赞同他。
He has a pair of shoes.
他有一双鞋。
It was from the study of these that so much was learnt about the interior of the earth.
正是从这两种波的研究中，我们可以了解到地球内部的许多情况。