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useful

英 ['juːsfʊl; -f(ə)l]美['jusfl]
  • adj. 有用的,有益的;有帮助的

英英释意


1. being of use or service;
"the girl felt motherly and useful"
"a useful job"
"a useful member of society"
2. of great importance or use or service;
"useful information"
"valuable advice"
3. capable of being turned to use or account;
"useful applications of calculus"
4. having a useful function;
"utilitarian steel tables"
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