impeccable /ɪmˈpɛkəbəl/ adjective Learner's definition of IMPECCABLE
[more impeccable; most impeccable]
: free from fault or error无瑕的；无误的 -
The craftsmanship is impeccable. [=flawless]制作工艺完美无瑕。
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He speaks impeccable [=perfect] English.他讲一口纯正的英语。
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She has impeccable taste in music.她对音乐有完美的鉴赏力。
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His manners are impeccable.他的举止无可挑剔。
— impeccably
/ɪmˈpɛkəbli/ adverb