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lightweight + noun
形容词用法，表示重量轻或便携。
This is a lightweight laptop.
这是一台轻便的笔记本电脑。
不到平均重量的人/物; 轻量级; 无足轻重的人; 性格不够强的人
先理解核心含义，再看它在真实句子里的用法。
不到平均重量的人/物; 轻量级; 无足轻重的人; 性格不够强的人
a person or thing that is below average weight, especially a boxer in the lightweight class (131–135 pounds)
This is a lightweight laptop.
这是一台轻便的笔记本电脑。
根据规则规定的特定体重级别或成员,介于较重的次中量级和较轻的羽量级之间。具体见各运动的维基百科
A particular weight class, or member of such, as prescribed by the rules, between that of the heavier welterweight and the lighter featherweight. See Wikipedia for the specifics of each sport.
体重在 131 至 135 磅之间的职业拳击手
a professional boxer who weighs between 131 and 135 pounds
根据规则规定的特定体重类别,与开放或重量级类别分开
A particular weight category as prescribed by the rules, separate from an open or heavyweight class.
无足轻重却厚颜放肆的人
someone who is unimportant but cheeky and presumptuous
The lightweight champion defended his title last night.
这位轻量级冠军昨晚成功卫冕了他的头衔。
This backpack is made of a lightweight fabric, perfect for hiking.
这款背包由轻质面料制成，非常适合徒步旅行。
She dismissed his concerns as lightweight and irrelevant.
她认为他的担忧无足轻重且无关紧要。
形容词用法，表示重量轻或便携。
This is a lightweight laptop.
这是一台轻便的笔记本电脑。
名词用法，指轻量级拳手或体重轻的人。
He is a lightweight in boxing.
他是轻量级拳击手。
比喻用法，指无影响力或能力不足的人。
Don't listen to him; he's a political lightweight.
别听他的，他在政治上无足轻重。
Not this
This bag is light weight.
Use this
This bag is lightweight.
lightweight 是一个复合词，应写为一个单词，而非两个单词。中文学习者常将其误写为 "light weight"，可能是受形容词 "light" 和名词 "weight" 分离的影响，但标准英语中应连写。
Not this
You can lightweight the load by removing items.
Use this
You can lighten the load by removing items.
lightweight 是形容词或名词，不是动词。中文学习者可能受翻译“减轻重量”影响，直接将其用作动词，但英语中需使用 "lighten" 或 "make lighter"。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
轻质材料
The bicycle is made of lightweight material.
这辆自行车由轻质材料制成。
轻量级冠军
He became the lightweight champion last year.
他去年成为了轻量级冠军。
轻质布料
This shirt is made of lightweight fabric for summer.
这件衬衫由轻质布料制成，适合夏天。
轻量化设计
The aircraft features a lightweight design.
这款飞机采用了轻量化设计。
轻量级软件
We need lightweight software for the old computer.
我们需要一款轻量级软件给这台旧电脑。
轻量级拳击手
The lightweight boxer won the match.
这位轻量级拳击手赢了比赛。
发长 /aɪ/ 音 (如 high, light)
Same pattern, same sound
Use lightweight naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
light是轻，weight是重量，合起来就是重量轻，可联想起拳击的轻量级选手。
语域：neutral 常见场景：科技设备、运动装备 作为形容词时，通常用于描述物品重量轻，常见于科技产品和运动装备领域，语域中性。
作为可数名词，指重量轻的人或物，或轻量级拳击手；也喻指无足轻重的人。
Dictionary facts from ECDICT, WIKTIONARY.