N-VAR
轻浮的行为;无聊的活动
If you refer to an activity as a frivolity, you think that it is amusing and rather silly, rather than serious and sensible.
例句
There is a serious message at the core of all this frivolity...
在所有这些闹腾的核心传递着一个严肃的信息。
He was one of my most able pupils, but far too easily distracted by frivolities.
他是我最有才华的学生之一，只是太容易被一些无聊的事分心。