这款笔记本电脑非常轻便，便于携带。

This ___lightweight laptop is easy to carry around.

这场辩论被认为太过肤浅，缺乏实质性内容。

The debate was dismissed as too ___lightweight to address the real issues.

在这个领域里，他只是个无足轻重的人物。

In this field, he's just a ___lightweight.

这位拳击手在轻量级比赛中表现出色。

The boxer performed exceptionally well in the ___lightweight category.