英 [ɪg'zækt; eg-]
- adj. 准确的，精密的；精确的
- vt. 要求；强求；急需
- vi. 勒索钱财
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ex-, 向外。-act, 做，驱使，称量，词源同act, examine, exigent. 即称量的，精确要求的。
- exact:  The adjective exact ‘precise’ and the verb exact ‘demand with severity’ have undergone considerable semantic divergence over the centuries, but they both go back to the same source, the Latin verb exigere (from which English also got essay, examine, exigent , and exiguous ). This, a compound of the prefix ex- ‘out’ and agere ‘lead, drive’ (source of English act and agent), meant originally ‘drive out’, but in due course it developed the metaphorical senses ‘demand’ (preserved in the English verb), ‘weigh accurately’, and ‘bring to completion or perfection’.
These last two were taken up adjectivally in the Latin past participle exactus, from which English gets exact.
=> act, agent, essay, examine
- exact (adj.)
- "precise, rigorous, accurate," 1530s, from Latin exactus "precise, accurate, highly finished," past participle adjective from exigere "demand, require, enforce," literally "to drive or force out," also "finish, measure," from ex- "out" (see ex-) + agere "drive, lead, act" (see act (n.)).
- exact (v.)
- mid-15c., from Latin exactus, past participle of exigere "require, enforce, demand, collect (money);" see exact (adj.). Older in English than the adjective and retaining the literal sense of the Latin source. Related: Exacted; exacting.
- 1. The exact locations are being kept secret for reasons of security.
- 2. A small number — five, to be exact—have been bad.
- 3. Charles scored again, with an exact duplicate of his first goal.
- 4. Find the exact grip that allows you to hit the ball hard.
- 5. It has taken until now to pin down its exact location.
[ exact 造句 ]