单词	helpful
释义	help·ful (hĕlpfəl) adj. Providing assistance; useful. helpful·ly adv. helpful·ness n.
随便看	astute astutely astuteness Astyanax astylar Asunción asunder as usual ASV Aswan aswarm as well as well as aswirl aswoon as yet asylee asylum asymmetric asymmetrical asymmetrically asymmetry asymptomatic asymptomatically asymptote

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