| 词汇 | led |
| 释义 | led verb uk/led/ us/led/ （lead的过去式及过去分词） past simple and past participle of lead LED noun [ C ] uk/ˌel.iːˈdiː/ us/ˌel.iːˈdiː/ electronics specialized发光二极管（light-emitting diode的缩写） abbreviation for light-emitting diode: a type of diode (= a device that controls an electric current so that it can only flow in one direction) that produces light He contributed to the invention of various gadgets, including the first practical light-emitting diode, or LED. What is happening to produce photons of light when an LED conducts? -led suffix uk/ -led/ us/ -led/ 计划的；控制的 planned or controlled by a particular person or thing child-led activities (= children deciding what to do) 儿童自主性活动 |
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