usableadj.
英 'juːzəb(ə)l | 美 'jʊzəbl
中文adj. 可用的；合用的（等于useable）
词根词源
usable (adj.)late 14c., from Old French usable "available, in use" (14c.), from user (see use (v.)). Not a common word before c. 1840, when probably it was re-formed from use (v.) + -able. Related: Usably.
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