frivolous

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adj.

轻佻的, 琐碎的, 妄动的

1. 轻薄的,轻佻的

He made some frivolous remarks.

他说了些轻佻话。

2. 无聊的,琐碎的[+to-v]

He spent a lot of his money on frivolous things.

他在一些无聊的事上花了好多钱。

It was frivolous of him to make such an accusation.

他提出这样的指控真无聊。