If something is faultless, it has no mistakes — a performance, a piece of work, an accent, a plan carried out with nothing to pick at. It is a strong compliment, a little formal, and often a bit of praise with a shine on it: not merely good, but without a slip. People say it of singing, driving, manners, logic.

If something is faultless如果某個東西是faultless it has no mistakes就是完全沒有錯 a performance, a piece of work, an accent, a plan carried out with nothing to pick at像是一場表演、一份作品、一個口音，或一個執行起來挑不出毛病的計畫 It is a strong compliment這是很強烈的稱讚 a little formal帶點正式 and often a bit of praise with a shine on it而且常常是那種閃閃發亮的讚美 not merely good, but without a slip不只是好，而是完全沒有一絲差錯 People say it of singing, driving, manners, logic人會用它形容唱歌、開車、禮貌，或邏輯

Though actually, it is about errors, not about blame. “It was not my fault” and “a faultless copy” use fault in different rooms of the same house.

Though actually不過其實 it is about errors它講的是錯誤 not about blame不是講該怪誰 "It was not my fault" and "a faultless copy"「這不是我的錯」跟「一份faultless的副本」 use fault in different rooms of the same house這兩個講法裡的fault，用的是同一個字的不同意思

Faultless does not mean “nobody is to blame”; it means “no flaw showed.” In real talk, we also use it with a small stretch: a “faultless” evening may still have been lucky, not perfect in every tiny way.

Faultless does not mean "nobody is to blame"faultless不是說「沒有人該負責」 it means "no flaw showed"它是指「看不出任何瑕疵」 In real talk在實際說話裡 we also use it with a small stretch我們用它的時候也會稍微放寬 a "faultless" evening may still have been lucky一個「faultless」的夜晚也可能只是運氣好 not perfect in every tiny way不是每個小細節都真的完美