Lightweight
“Lightweight” 可作名词或形容词。作名词时：指拳击等运动中的轻量级级别或该级别选手；也引申指能力或影响力小的人、酒量差的人、或胜算不大的政治候选人。作形容词时：指重量轻、力量弱、不够严肃深入，或指软件等占用资源少、性能影响小。
- “The boxer moved up from featherweight to lightweight for the championship.” (这位拳击手从羽量级升到轻量级参加冠军赛。)
- “This lightweight laptop is perfect for travelers—it weighs less than two pounds.” (这款轻量级笔记本电脑非常适合旅行者——重量不到两磅。)
- “Don’t take him seriously; he’s a lightweight when it comes to business decisions.” (别当真，在商业决策方面他无足轻重。)
由 “light”（轻的）+ “weight”（重量）复合而成。字面意为”重量轻的”。
- 词根: light（轻的）+ weight（重量）
- 复合词，可作名词或形容词
在体育领域，lightweight 是拳击、摔跤、举重等项目的标准体重级别之一。在科技领域，“lightweight” 形容占用资源少、运行高效的程序或框架（如 lightweight framework）。用作贬义时，指某人能力不足或不够严肃。
- 固定搭配: “lightweight champion” (轻量级冠军), “lightweight material” (轻质材料), “lightweight software” (轻量级软件)
- 反义词: heavyweight（重量级；重要的）
Light（轻）+ weight（重量）。重量轻 = 轻量级。与 heavyweight 形成对比。
“The new smartphone was a lightweight marvel—slim, fast, and barely noticeable in a pocket. Tech reviewers praised its lightweight design, though some power users found it too limited for their needs.” (这款新智能手机是轻量级的奇迹——轻薄、快速，放在口袋里几乎感觉不到。科技评测者称赞其轻量设计，尽管一些重度用户觉得它功能过于有限。)