Brian considered Sam a lightweight, a real amateur.

布赖恩认为萨姆是个无足轻重的人，是个真正的业余选手。

《柯林斯英汉双解大词典》

As a response to Japanese kamikaze attacks, Grumman developed the F8F Bearcat as a lightweight fighter able to climb quickly to meet incoming enemy aircraft.

作为对日本神风敢死队袭击的回应，格鲁门公司研发了 F8F 熊猫，它是一种轻型战斗机，能够迅速爬升以迎接来袭的敌机。

youdao

This lightweight zoom camera will fit comfortably into a fanny pack or coat pocket.

这部轻型变焦相机可以很轻易地放入腰包或外套口袋里。

《柯林斯英汉双解大词典》

L is for layers.Wearing loose, lightweight clothes, one layer on top of another, is better than wearing a single heavy layer of clothing.

VOA: special.2009.12.23

When this book first came out, critics called her a lightweight.

当她出版了第一本书时评论家们说她无足轻重。

耶鲁公开课 - 1945年后的美国小说课程节选

Find yourself unable to cope with the relentless pressures of top-level competition, and, for some, you're a lightweight, a weakling, a bottler.

BBC: Bitter-sweet sympathy

Some Republicans dismiss Kennedy as a political lightweight, a celebrity front man for Gephardt's political strategy.

CNN: latimes.com: Talking baseball and politics with George W. Bush

Provide a lightweight device with a large screen, fast processor, connectivity, lots of memory, and a full range of applications and you have a winning product.

FORBES: The Amazon Kindle Fire May Kill The RIM Playbook