eu-表示"好,优秀"

eulogize

//赞美(eu+log 说+ize→说好话)

euphemism

//委婉的词语(eu+phem 讲话+ism→讲好话)

euphonious

//声音优美的(eu+phon 声音+ious→声音好听的)

eurhythmic

//协调的(eu+rhythm 节奏+ic)

euphoria

//幸福愉快感(eu+phor 带来+ia→带来美好→愉快)

eugenics

//优生学(eu+gen 产出+ics→产生优秀〔后代〕→优秀生)