Keystone
[ ['ki:stəun] ]
大学 College
n. 拱顶石, 楔石, 重点
✅ 同义词
📖 牛津释义
keystone
n
1 (architecture 建) central stone at the top of an arch locking the others into position 拱顶石.
2 (usu sing 通常作单数) (fig 比喻) most important part of a plan, an argument, etc on which all the other parts depend （计划、 论据等的）基础, 主旨
Belief in a life after death is the keystone of her religious faith. 她的宗教信仰的基础是相信死後有来生. Cf 参看 corner-stone (corner1).
🗣️ 情景例句
Hey, what's up buddy?
怎么着，哥们。
The above inquiry weas forwarded to you on Oct. 10, but we haven't received your reply until now. Your early offer will be highly appreciated.
上述询价已于10月10日发往你方，可是我们到现在还没收到你方答复，请早日发盘不甚感谢。
Fine, thanks, Mike.
我很好，谢谢你，迈克。