英语词汇thankless的发音释义、词根词缀、结构分析、同源词、词频及词根记忆法-英语词根词缀词典

词汇	thankless
词根词缀	Online Etymology Dictionary thankless adj. "likely to not be rewarded with thanks," 1540s, from thank + -less. Related: Thanklessly; thanklessness.
随便看	enter enter-, entero- enteric enteritis entero- enterovirus enterprise enterprising entertain entertainer entertainment enthalpy enthrall enthrone enthuse enthusiasm enthusiast enthusiastic enthymeme entice enticement entire entirely entirety entitle

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