unbeatenadj.
英 ʌn'biːt(ə)n | 美 ʌn'bitn
中文adj. 未被击败的；未被践踏的；未搅打的
词根词源
unbeaten (adj.)late 13c., "not beaten or struck," from un- (1) + beaten. In the sense of "undefeated" it is first recorded 1757. Old English had ungebeaten "unwrought, unstruck."
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