lackluster相关的词根或词缀是: luclust lumin lustr

With personal bonds this important , it would seem prudent to put a little work into improving them , especially if they are struggling or even just a little lackluster .

既然人际关系如此重要，那么稍微多用点心对其加以改善应该是明智之举，尤其是当人际关系出现困难甚至有点了无生气时。

Despite a stronger share of consumption in gdp growth , retail sales appeared lackluster .

尽管消费对中国gdp增长的贡献率加大，但零售情况却显得低迷。

But his performance during the deepwater horizon crisis has been widely perceived as lackluster .

但外界普遍认为他在深水地平线钻井平台漏油危机期间的表现乏善可陈。

Gold has been lackluster this year , but some high-profile fans say the future is brightening .

今年以来黄金一直表现平平，不过一些高调的黄金追随者说，投资黄金的前景日渐光明。

Britain 's number-one tennis player gave a disappointingly lackluster performance .

英国头号网球运动员的表现令人失望，毫无生气。