| 单词 | useful |
| 释义 | useful —usefully, adv. —usefulness, n. /yoohs"feuhl/, adj. 1. being of use or service; serving some purpose; advantageous, helpful, or of good effect: a useful member of society. 2. of practical use, as for doing work; producing material results; supplying common needs: the useful arts; useful work. [1585-95; USE + -FUL] Syn. 1, 2. profitable, efficacious, beneficial. Ant. 1, 2. useless. |
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