black-market

black-market ["blæk-mɑːrk] 的音标为 [blæk] 读清辅音 [mɑːrk] 读元音，基本翻译为“黑市”，速记技巧为“black 黑，market 市场，-的”表示形容词。

Black market的英文词源可以追溯到19世纪，当时这个词通常用来描述非法市场或黑市交易。它的变化形式包括复数形式“black markets”和过去式“black-marked”。

相关单词：

Shadow economy：暗经济或影子经济，指的是在官方统计之外的经济活动，通常是非法的。

Illicit trade：非法贸易，指的是违反法律或规定的贸易活动。

Underground economy：地下经济，指的是在官方监管之外的经济活动，通常是非法的。

Smuggler：走私者，指的是进行非法贸易的人或组织。

Contraband：违禁品，指的是禁止进口或出口的货物。

Black-market rate：黑市汇率，指的是在黑市上交易的货币汇率。

Shadow finance：暗金融，指的是非正式的金融活动，通常是非法的。

Smuggling：走私，指的是将货物从一国偷运到另一国。

Shadow bank：暗银行，指的是非正式的金融机构，通常从事非法的金融活动。

Blacklist：黑名单，指的是将某人或某组织列入禁止交易或合作的名单。

常用短语：

1. black-market goods

2. black-market rate

3. buy and sell on the black market

4. operate on the black market

5. engage in black-market activities

6. black-market trader

7. underground economy

例句：

1. They are selling black-market goods at a discount.

2. The exchange rate on the black market is unpredictable.

3. We must not engage in any black-market activities.

4. He is a regular black-market trader.

5. The underground economy is thriving in this city.

6. The government is cracking down on the underground economy.

7. We need to ensure that our economy is above board and not operating on the black market.

英文小作文：

In today"s society, the underground economy has become a common phenomenon, and many people engage in illegal activities to make a living. These activities include buying and selling black-market goods, operating on the black market, and engaging in other illegal activities that are not legalized by the government. Although these activities may provide some people with a way to make a living, they also have negative impacts on society, such as undermining the rule of law and causing economic instability. Therefore, it is important for governments to take measures to combat the underground economy and ensure that all economic activities are legalized and regulated. This will help to maintain social stability and promote economic development.