spotty

音标发音

Part of the reason it’s so difficult to tell these two scenarios apart is that spotty observations make fake signals in the data.
之所以很难把两种假说分辨开来，是因为质量不一的观测带来了数据中的虚假信号。
For most of these organizations, service-orientation will be spotty, uneven, without purpose, and often without the full support of the enterprise — or perhaps no support at all.
对绝大多数这类组织来说，面向服务将是缺点多、不公平、无目的、而且经常缺少企业的全力支持——或者根本就不支持。
Mixed content -- the ability to mix child elements and plain text in XML elements -- has spotty support in some schema languages, which is unfortunate since it is one of the defining features of XML.
混合内容 - 混合子元素和 XML 元素中纯文本的能力 - 在一些模式语言中得到的支持不尽相同，由于这是 XML 的定义特性之一，从而造成此缺憾。

It turned out to be a spotty globe just like the earth.
最后发现是像地球一般的球状物。
耶鲁公开课 - 弥尔顿课程节选
Not just that, but the moral certainties that may have seemed distinct when we contrasted the ethereal heaven with the spotty and the imperfect nature of Satan and of the moon -those, too begin to seem fairly hazy.
不仅如此，其中看起来有所不同的,当我们对比天堂和撒旦与月亮的不完美时,其中道德的确定性,-那些令人模糊朦胧的事务，也开始崩塌。
耶鲁公开课 - 弥尔顿课程节选

As for Intel, their batting average on forecasting even quarterly revenues accurately is truly spotty.
FORBES: Management Guidance Is Mostly Worthless
Ads stress price (since Nigerians are both chatty and price-sensitive) and coverage (which is spotty).
ECONOMIST: Advertising in Africa

Something that is spotty does not stay the same but is sometimes good and sometimes bad.
Someone who is spotty has spots on their face.