carefuladj.
英 'keəfʊl; -f(ə)l | 美 'kɛrfl
中文adj. 仔细的，小心的
词根词源
careful (adj.)Old English cearful "mournful, sad," also "full of care or woe; anxious; full of concern" (for someone or something), thus "applying attention, painstaking, circumspect;" from care (n.) + -ful.
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