Is Ubuntu flawless?

　　Ubuntu是完美無(wú)缺的嗎？

　　He has spent years in America, and speaks flawless English.

　　他在美國居住了幾年并能說(shuō)一口流利的英語(yǔ)。

　　This wonderful boyfriend was flawless — who cared about his pennilessness?

　　這個(gè)出色的男朋友簡(jiǎn)直是完美無(wú)瑕的----誰(shuí)在乎他一窮二白，身無(wú)分文呢？