currency 有两个核心义：① 「货币」：foreign currency（外汇）；a single currency（单一货币：the euro as a single currency = 欧元作为单一货币）；currency exchange（货币兑换）；② 「流通，传播（抽象）」：gain currency（变得流行/广泛接受：the idea has gained currency = 该想法已被广泛接受）；lose currency（失去影响力）。辨析：currency（特指法定货币，正式书面）vs. money（钱，日常通用：money is tight = 钱不够用）vs. cash（现金：pay in cash = 付现金）。
释义
1
n.货币（国家的法定通货）
The country's currency has depreciated sharply against the dollar, raising the cost of imported goods and fuelling inflation.
该国货币对美元大幅贬值，推高了进口商品成本并助长了通货膨胀。
2
n.流通，普及（某观念或信息的广泛传播）
The idea that economic growth and environmental sustainability are mutually exclusive has gained considerable currency in recent years, despite evidence to the contrary.
尽管有相反的证据，经济增长与环境可持续性相互排斥的观念近年来获得了相当程度的流传。
语感
foreign currency（外汇）；currency exchange（货币兑换）；a single currency（单一货币）；gain / lose currency（获得/失去流通性）；cryptocurrency（加密货币）
高频搭配：foreign / domestic currency（外币/本国货币）；currency exchange / rate（货币兑换/汇率）；a single / common currency（单一/共同货币：the single European currency = 欧元）；devalue / depreciate the currency（货币贬值）；cryptocurrency（加密货币：Bitcoin is a cryptocurrency = 比特币是一种加密货币）；gain currency（变得流行，被广泛接受：the theory has gained currency = 该理论已被广泛接受）；lose currency（失去影响力/流通性）；辨析：currency（法定货币，正式）vs. money（钱，日常广义：have money = 有钱）vs. cash（现金：carry cash = 携带现金）vs. finance（财务，金融：financial resources = 财务资源）。
陷阱
⚠️currency（货币，正式）vs. money（钱，日常）——语体不同
The central bank intervened to stabilise the country's currency following a period of intense market volatility.
✗
currency = money（完全可互换）
✓
currency（货币，正式，指国家的法定货币：the national currency = 国家货币；currency depreciation = 货币贬值；the currency market = 货币市场）；money（钱，日常广义：have money = 有钱；save money = 省钱；money can't buy happiness = 金钱买不到幸福）；× the national money = 不自然（用 currency）；× currency is tight（应用 money is tight = 手头紧）
The proposition that artificial intelligence could replace most white-collar jobs has gained money among technology commentators.
人工智能可能取代大多数白领工作的论点在科技评论家中广为流传。（× gain money → ✓ gain currency，gain currency = 抽象流通义）
gain currency（获得流通，变得广泛接受）是固定搭配（抽象义）；× gain money = 挣钱（money 是实体货币，不能「传播」）；gain currency = 某想法/概念「流通」起来，越来越多人接受；类似：lose currency = 某想法失去流行；hold currency（with sb.）= 对某人有说服力；此句应用 gain currency（流传），不是 gain money（挣钱）
✓
The proposition that artificial intelligence could replace most white-collar jobs has gained currency among technology commentators.
人工智能可能取代大多数白领工作的论点在科技评论家中广为流传。（gain currency = 变得被广泛接受，× gain money）
近义辨析
currencyvsmoney
currencycurrency（货币，法定通货：the national currency = 国家货币；foreign currency = 外汇；正式书面，指体制性货币）moneymoney（钱，日常广义：earn money = 挣钱；spend money on = 把钱花在；save money = 省钱；比 currency 通俗，可指现金、存款、财富等一切形式的钱）
The government's decision to peg its currency to the dollar was intended to curb inflation and restore investor confidence.
政府将货币与美元挂钩的决定旨在遏制通货膨胀并恢复投资者信心。
Charities often report that a lack of money prevents them from expanding their services to reach more people in need.
慈善机构常常报告说，缺乏资金阻止了他们扩大服务以惠及更多有需要的人。
写作加分
✨ 加分词
替换：moneybeing popularspreading
政策分析话题经济话题学术议论文
普通
The idea that money can solve all problems is very popular now.
金钱可以解决所有问题的观念现在非常流行。
加分 ✨
The belief that market forces alone can resolve inequality has gained significant currency in policy circles, yet empirical evidence consistently suggests that redistributive intervention remains necessary.
Fluctuations in the exchange rate can significantly affect a country's currency and the competitiveness of its exports in international markets.
汇率波动会显著影响一国货币及其出口产品在国际市场的竞争力。
a country's currency（一国货币）搭配正确；significantly affect = 副词修饰动词；the competitiveness of its exports = 并列宾语，语法正确
Q2近义选词
选择最恰当的词填空：
Managing personal ___ effectively requires discipline, long-term planning, and a clear understanding of the difference between needs and wants.
Acurrency
Bmoney
✓ 有效管理个人财务需要自律、长期规划以及对需求和欲望之间区别的清晰理解。
personal money（个人财务/金钱）是日常表达；managing personal money = 管理个人财务；× managing personal currency = 不自然（currency 更指国家或体制性货币，不用于个人层面）；在个人理财语境用 money 或 finances
Q3义项辨析
下面四个句子中，currency 的含义与其他三个最不同的是：
A
The euro serves as a shared currency for nineteen member states of the European Union, facilitating trade and reducing transaction costs.
欧元作为欧盟十九个成员国的共同货币，促进了贸易并降低了交易成本。
B
The view that individual lifestyle choices are the primary driver of poor health has gained considerable currency in public debate.
认为个人生活方式选择是健康不良的主要驱动因素的观点在公众辩论中获得了相当大的传播。
C
Tourists should exchange their home currency before departure to avoid unfavourable airport exchange rates.
游客应在出发前兑换本国货币，以避免不利的机场汇率。
D
The country introduced a new national currency following its withdrawal from the regional monetary union.