Underpinned
v. 用砖石结构等从下面支撑（墙等）( underpin的过去式和过去分词 ); 加固（墙等）的基础; 为（论据、主张等）打下基础; 加强
🗣️ 情景例句
You have a great future.
你前途无量。
I'm always disappointed when I don't get any mail.
当我收不到任何邮件时，我总是很失望。
It comes nearer to the engines with which man has 'conquered' the air, as he boasts.
它更近乎于人类自夸的“征服”了空气的发动机。