But their concerns, although expressed at the wrong time, are not frivolous.

但是，尽管他们的担忧表达时机不当，也并不是无关紧要。

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Complaints about noise are not frivolous. Noise disturbs our sleep, prevents people from enjoying their time off work and too often leads to altercations when the police are called in.

关于噪音的投诉并非小事。噪音不但干扰大家的睡眠，使人们不能好好地享受下班后的时间，而且警察被叫来时还常常引起纠纷。

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"There's a common belief that reading literature is frivolous, or not practical," Mar said.

“人们普遍认为阅读文学作品是轻浮的，或者是不切实际的。”马尔说。

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Given the enormous settlement pressures imposed on defendants once they are required to begin incurring the substantial costs of pre-trial discovery, plaintiffs can hardly complain when they are asked at the outset to show that their claims are not frivolous.

FORBES: Is It Too Much To Ask That a Lawsuit Be ��Plausible��?

Not terribly funny, perhaps but not entirely frivolous, either.

ECONOMIST: The history and future of the German-Polish relationship

But the American objections are not entirely frivolous.

ECONOMIST: The borders of competition