Key currency
[经] 主要通货, 关键货币
🧩 词语组成解析
key
[kiː]
n. 钥匙;（打字机等的）键;关键，线索，秘诀;（音乐的）调;
vt. 键入;锁上;调节…的音调;提供线索;
vi. 使用钥匙;
adj. 关键的;主要的;
🗣️ 情景例句
She's the apple of my eye.
她是我的至爱。
If the pills were pleasant, they would not be gilded.
丸药不苦不会加糖衣。
You've done very well. It's a pity you missed the sports meeting last week.
你学得不错嘛。很可惜，你错过了上周的运动会。