dropped 是动词 drop 的过去式和过去分词形式，核心含义围绕“落下、降低、减少”等动作展开，在不同语境中可表达具体或抽象概念。其英式音标为 /drɒpt/，美式音标为 /drɑːpt/ 。作为形容词时，还可表示“（衣服式样）低腰的，靠下的” 。
表示物理性掉落：指物体从手中或高处意外坠落。
例：She dropped the vase and smashed it to smithereens.（她失手将花瓶摔得粉碎。）
例：I dropped my glasses and broke them.（我不小心掉了眼镜，把它摔破了。）
表示数量、程度或水平下降：用于描述价格、温度、数量等数值减少。
例：The number of commuters to London has dropped by 100,000.（往返于伦敦的上班族减少了10万。）
例：Oil prices have dropped by over 60% since June 2014.（自2014年6月以来，油价已下跌超过60%。）
表示停止或放弃：指终止某项活动、计划或关系。
例：He'd dropped out of high school at the age of 16.（他16岁时从中学退学了。）
例：However, the plan was dropped due to lack of funds.（然而，该计划因资金不足被搁置。）
表示声音变低：指说话时故意降低音量。
例：Rose's voice dropped and was interrupted by the rumble of Dagmar's.（罗斯压低了声音，然后被达格玛低沉的声音打断了。）
例：Her voice dropped to a whisper.（她的声音降到了耳语的程度。）
表示递送或放置：指用车等交通工具将人或物送到某地并放下。
例：He dropped me outside the hotel.（他让我在旅店外下了车。）
| 短语 | 含义 | 例句 |
|---|---|---|
| dropped out | 退出，退学 | Many students have dropped Prof. Johnson's class.（许多学生退出了约翰逊教授的课程。） |
| dropped by | 顺便拜访 | I dropped by my friend's house after work.（下班后我顺便去了朋友家。） |
| dropped off | 减少；让……下车 | Applications for unemployment benefits dropped last month.（上个月失业救济申请人数减少了。） |
| dropped the idea | 放弃想法 | He was told to drop the idea.（他被告知放弃这个想法。） |
| dropped voice | 压低声音 | She dropped her voice dramatically.（她突然压低了声音。） |
As stock prices have dropped, so too has bank capital.（随着股价下跌，银行资本也减少了。）
Wondering if food is still OK to eat after it's dropped on the floor is a pretty common experience.（食物掉在地上后是否还能吃，这是个很常见的疑问。）
The wind dropped and the surface of the sea was still.（风势渐弱，海面重归平静。）
Among large traditional retailers, Walmart's stock price surged, while Macy's dropped.（在大型传统零售商中，沃尔玛股价上涨，而梅西百货股价下跌。）
She refused to testify unless the murder charge against her was dropped.（除非撤销对她的谋杀指控，否则她拒绝作证。）
Perception of sweet and salty foods