Undergird
vt. 从底层加固, 支持, 加强
🗣️ 情景例句
A dime is 10 cents. It's one tenth of a dollar.
一角有十美分，是一美元的十分之一。
How long does it take to get there?
到那里要多少时间？
What did he do?
他是干什么的？