Corner-stone
墙角石；基础；要件
📖 牛津释义
corner-stone
n
1 stone that forms the base of a corner of a building, often laid in position at a ceremony 奠基石.
2 (fig 比喻) thing on which sth is built; foundation 基础
Hard work was the corner-stone of his success. 努力奋斗是他成功的基础.
🧩 词语组成解析
corner
['kɔrnɚ]
n. 角落，角;拐角;困境;[商]囤积;
vi. 驾车转弯;聚于角落;
vt. 垄断;逼入困境;
adj. 位于角落的;
stone
[ston]
n. 石头;宝石;矿石;（膀胱或肾脏中的）结石;
vt. 向扔石块;用石头铺;以石掷向;除（水果的）硬核;
adj. 石制的;石头似的;[S-]石器时代的;粗陶制的;
adv. 石一般的;
🗣️ 情景例句
Do I need a visa to go to HongKong?
去香港需要签证吗？
I hope no questions about the terms.
我看合同的条款没有什么问题了。
'Oh, that,' said the Ambassador.
“那个嘛，”大使说，