c. 1300, certeynte, "surety, pledge," from Anglo-French certeinté (late 13c.), Old French certainete "certainty," from Latin or Vulgar Latin *certanitatem (source of Old Spanish certanedad); see certain. Meaning "that which is certain" is attested from early 14c.; meaning "quality of being certain" is from mid-14c.
实用例句
1. Such attitudes are valueless unless they reflect inner cognition and certainty.
这种态度如果不能反映内心的认知和把握就毫无价值。
来自柯林斯例句
2. Her return to the team now seems a certainty.
她的归队现在似乎已成定局。
来自《权威词典》
3. I know for a certainty that the company has been bought up.
我确实知道公司已经被人收购了.
来自《简明英汉词典》
4. It's a dead certainty that this horse will win the race.
这匹马在比赛中获胜是必定的.
来自《简明英汉词典》
5. I can't say with any certainty where I shall be next week.
