sporadic
音标：
美音：/spəˈrædɪk/，英音：/spəˈrædɪk/
听听基本释意：
外刊例句：
Chances were sporadic for the hosts at Stadium MK and they did not make the most of their few opportunities.
MK 体育场的东道主机会很少，他们没有充分利用为数不多的机会。
—BBC
For months, sporadic bombing near the plant has stirred international fears of a radioactive disaster.
几个月来，核电站附近的零星爆炸事件引发了国际社会对放射性灾难的担忧。
—Washington Post
Questions about Mr Blackford’s leadership had bubbled away throughout 2022, as sporadic grumbles about his performance bumped up against the growing ambitions of some of his colleagues.
整个 2022 年，关于布莱克福德先生领导力的问题不断涌现，对他表现的零星抱怨与他的一些同事日益增长的雄心相抵触。
—BBC
基本释意：
adjective
recurring in scattered and irregular or unpredictable instances
adj. 偶尔发生的，零星的；（疾病）偶发的，非流行性的
同义词：
没有找到同义词
短释义：
Sporadic is an adjective that you can use to refer to something that happens or appears often, but not constantly or regularly. The mail carrier comes every day but the plumber’s visits are sporadic — he comes as needed.
Sporadic 是一个形容词，您可以用它来指代经常发生或出现的事情，但不是经常发生或经常发生的事情。邮递员每天都来，但水管工的来访是零星的——他按需来。
长释义：
A specialized use of sporadic is to describe a disease that appears only occasionally in random cases, and is therefore not an epidemic. Mostly, though, you’ll hear this word used to describe anything that happens occasionally, like your family’s sporadic trips to visit your distant cousins in Ohio or the sporadic bake sales your science club sponsors when it’s low on funds. English borrowed the word sporadic from Greek sporadikós, “scattered.”
sporadic 的专门用途是描述一种只在随机病例中偶尔出现的疾病，因此不是流行病。不过，大多数情况下，你会听到这个词用来描述任何偶尔发生的事情，比如你的家人偶尔去俄亥俄州拜访你的远房表亲，或者你的科学俱乐部在资金不足时偶尔赞助的烘焙义卖。英语从希腊语 sporadikós 中借用了 sporadic 这个词，意思是“分散的”。
文学例句：
But for most of Mr. Attenborough’s later career, his acting was sporadic while he devoted much of his time to directing.
但在阿滕伯勒先生后期职业生涯的大部分时间里，他的表演都是零星的，而他将大部分时间都花在了导演上。
—Richard Attenborough, Actor, Director and Giant of British Cinema, Dies at 90 by Benedict Nightingale
The backup is mostly the trap skeleton of a slow shuffle beat, a few piano chords and sporadic bass tones, echoing life at an emotional standstill.
伴奏主要是慢速随机节拍的陷阱骨架，一些钢琴和弦和零星的低音，在情绪停滞的情况下回荡生活。
—The Playlist: Lil Wayne Recaptures His Old Magic and 8 More New Songs by ???
The sporadic grumbles that can suddenly overrun a town like a summer forest fire had been given another excuse to ignite again.
零星的抱怨可以像夏天的森林大火一样突然席卷整个城镇，这又给了它一个再次点燃的借口。
—Friday Night Lights: A Town, A Team, And A Dream by H.G. Bissinger
词源：
sporadic (adj.)1680s, from Medieval Latin sporadicus “scattered,” from Greek sporadikos “scattered,” from sporas (genitive sporados) “scattered, dispersed,” from spora “a sowing” (see spore). Originally a medical term, “occurring in scattered instances;” the meaning “happening at intervals” is first recorded 1847. Related: Sporadical (1650s); sporadically.
下面是词源的翻译（机器翻译比较难翻，参考着看）
sporadic (adj.)1680s，源自中世纪拉丁语 sporadicus“散落”，源自希腊语 sporadikos“分散”，源自 sporas（属格 sporados）“分散的，分散的”，源自 spora“播种”（见孢子）。最初是一个医学术语，“在零散的情况下发生；” 1847 年首次记录了“每隔一段时间发生”的意思。相关：零星的（1650 年代）；偶尔。
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