help·ful /ˈhɛlpfəl; ||ˈhɛp ||ˈhɛəp-/
(a.)有幫助的,有益的,有用的
Help·ful a. Furnishing help; giving aid; assistant; useful; salutary.
Heavens make our presence and our practices
Pleasant and helpful to him! --Shak.
-- Help*ful*ly, adv. -- Help*ful*ness, n.
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helpful
adj 1: providing assistance or serving a useful function [ant: unhelpful]
2: of service or assistance; "a child who is helpful around the
house can save the mother many steps"
3: showing a willingness to cooperate; "a helpful cooperative
patient"; "parents hope to raise children who are
considerate and helpful to others"