There is no clear and unbiased information available for consumers

　　消費(fèi)者沒(méi)有清晰明確、不偏不倚的`信息可以參考。

　　The researchers were expected to be unbiased.

　　調(diào)查人員應(yīng)該是不帶偏見(jiàn)的。

　　The witness is unbiased and so reliable.

　　那個(gè)證人沒(méi)有偏見(jiàn)，因而是可靠的。

　　When the estimator is unbiased, the numerical estimate is frequently also called unbiased.

　　當(dāng)估計(jì)量無(wú)偏時(shí)，數(shù)字估計(jì)值也常叫做無(wú)偏的。

　　He had an unblemished reputation.

　　他的名聲白璧無(wú)瑕。