“优惠”在英语中根据语境有多个对应词汇，最常用的是 discount（折扣）、preferential（优惠的）和 favourable（有利的/优惠的）。其中 discount 侧重价格减免，preferential 强调对特定群体的优待，favourable 多用于描述条件或价格的优势。
音标：英 /ˈdɪskaʊnt/，美 /ˈdɪskaʊnt/
词性：n.（折扣）；v.（打折）
含义：商品价格的直接减免，通常以百分比或金额表示。
例句：
现金付款可享9折：We give 10 percent discount for cash.
会员购物享8折：All full-time staff get a 20 percent discount.
音标：英 /ˌprefəˈrenʃl/，美 /ˌprefəˈrenʃl/
词性：adj.（优惠的）
含义：针对特定群体（如学生、会员）的特殊待遇。
例句：
中国对外国投资者提供优惠政策：China's investment policy provides preferential treatment to foreign investors.
音标：英 /ˈfeɪvərəbl/，美 /ˈfeɪvərəbl/
词性：adj.（有利的）
含义：描述价格、条件等具有优势，常与“terms”（条件）或“price”（价格）搭配。
例句：
优惠价格：favourable price
双方达成优惠条款：They agreed on favourable terms for the project.
| 短语 | 含义 | 例句 |
|---|---|---|
| at a discount | 打折；不受欢迎 | These goods are sold at a discount.（这些商品打折出售） |
| special discount | 特别折扣 | Students can get a special discount on cinema tickets. |
| preferential policy | 优惠政策 | The government introduced preferential policies for small businesses. |
| favourable terms | 优惠条件 | We offer favourable terms for long-term合作. |
| 20% off | 八折（减价20%） | All computers are 20% off during the sale. |
这家店所有商品打五折：All items in the store are at a 50% discount.
凭会员卡可享额外9折：Show your membership card for an extra 10% discount.
老年人可享受公交优惠：Seniors get preferential rates on public transport.
我们提供优惠的批发价格：We offer favourable wholesale prices.
促销期间，这款手机降价300元：This phone has 300 yuan off during the promotion.
新客户首次订单享85折：New customers get 15% discount on their first order.
团购满10人可享团体优惠：Group discounts apply for orders of 10 or more people.
优惠活动截止到本周末：The special offer ends this weekend.
员工购买公司产品享有内部优惠：*Employees get preferential purchase prices for