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watchful

英 ['wɒtʃfʊl; -f(ə)l]美['wɑtʃfl]
  • adj. 注意的;警惕的;警醒的

考试真题


An assumption behind UK insurance for driverless cars, introduced earlier this year, insists that a human "be watchful and monitoring the road" at every moment.

2017年高考英语天津卷 阅读理解 阅读C 原文

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