silly season

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All this would seem no more than a silly-season spat were a larger question not hanging in the air: will Mr Zapatero stand at the next general election?
社会党的矛盾看起来只不过是新闻缺乏期里的一次普通争吵，但却凸显了背后的一大问题：萨帕特罗能撑到下一届大选么？
Initiatives such as Nice's work in the area, and an ongoing House of Lord's inquiry on behaviour change indeed suggest that the topic is more than a blip in the media's summer silly season.
通过对这一地区Nice的倡议以及上议院所作的行为改变调查结果的研究表明这个话题只是媒体在无聊的夏季昙花一现的炒作罢了。
Then, at the height of next year’s silly season, Californians (the ones who have owed the tax all along and didn’t know it) will decide this complex matter.
然后，在明年新闻最无聊的月份，加州人民（自始至终都受益于该税收却不自知的人们）将决定这个复杂的事件该如何收场。

Is it silly season already, or did I really read this in the Onion?
FORBES: Moms Group Says GEICO Ad Promotes Bestiality
You have to know the Silly Season has officially arrived when this sort of story creates an international flap.
FORBES: Canadian Oil Sands Unfairly Tainted By BP Fiasco
It is time to begin pondering these and other questions as Silly Season begins, even if only reluctantly and with a knowing half-smirk.
FORBES: The Silly Season of Forecasts

the time of year, usually in the summer, when newspapers are full of stories that are not important because there is no important, especially political, news

a period, usually during the hot summer months, when journalists fill space reporting on frivolous events and activities