Black market rates
[经] 黑市率
🧩 词语组成解析
black
[blæk]
adj. 黑（色）的;黑色人种的;黑暗的;不加牛奶的;
n. 黑色;黑人;黑颜料;黑暗;
v. 使变黑;抵制;拒绝;使变黑暗;
market
['mɑrkɪt]
n. 交易;市集;需求;交易情况，行情;
vt. 在市场上出售某物;推销;
vi. <美>去市场买东西;
mark(merc-=trade)+et(名词后缀)→市场；市集；交易；出售
n. 比率；价格；等级（rate的复数形式）
🗣️ 情景例句
Mind your manners.
注意你的行为举止。
Waste not, want not.
俭以防匮。
When a student recently saw two workmen using a pneumatic drill outside his university, he immediately telephoned the police and informed them that two students dressed up as workmen were tearing up the road with a pneumatic drill.
最近有个学生看见两个工人在学校门外用风钻干活，马上打电话报告警察，说有两个学生装扮成工人，正在用风钻破坏路面。