| 单词 | untiring |
| 例句 | untiring adjective •these kids have been untiring in their efforts to get to the championship:vigorous, energetic, determined, resolute, enthusiastic, keen, zealous, spirited, dogged, tenacious, persistent, persevering, staunch | tireless, unflagging, unfailing, unfaltering, unwavering, indefatigable, unrelenting, unswerving | formal pertinacious. |
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