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1
确定, 确信
feeling completely sure about something and showing that you believe it
- Being certain of her feelings, she decided to confess her love.
对自己的感觉确定后，她决定表白她的爱。
- He felt certain that the plan would work.
他确信计划会成功。
- I'm certain we're on the right road.
我确信我们走在正确的道路上。
- If you are certain of his loyalty, you can tell him your secret.
如果你对他的忠诚确信无疑，你可以告诉他你的秘密。
- She was certain that she left her keys on the table.
她确定她把钥匙忘在桌子上了。
反义词：
2
某个, 特别的
referring to a specific thing, person, or group, distinct from others
- She had a certain feeling that everything would turn out fine in the end.
她有一种确定的感觉，认为最终一切都会好起来的。
- There was a certain charm to the old bookstore, although she couldn't pinpoint exactly what it was.
那家旧书店有一种特定的魅力，尽管她无法确切指出那是什么。
- There was a certain magic in the way the sunlight filtered through the trees in the forest.
阳光透过森林树木的方式中有某种魔力。
- She had a certain sense of nostalgia whenever she visited her childhood home, even though it had changed over the years.
每当她回到童年时的家，尽管它已经随着岁月改变，她仍有一种特定的怀旧感。
- He possessed a certain understanding of the topic, even though he couldn't explain it fully.
他对这个话题有一定的理解，尽管他不能完全解释它。
3
确定的, 不可避免的
unavoidable or very likely to happen
- The storm's arrival is certain, so we should prepare for it.
风暴的到来是确定的，所以我们应该做好准备。
- After months of preparation, their success seemed certain.
经过数月的准备，他们的成功似乎确定无疑。
- Given the current trends, a price increase is certain next year.
鉴于当前趋势，明年价格上涨是确定的。
- It’s certain that she’ll win the award, given her outstanding performance.
鉴于她的出色表现，她肯定会获奖。
反义词：
4
确定的, 不会失败的
destined to happen or incapable of failing
- He is certain to win the competition.
他肯定会赢得比赛。
- She is certain to arrive on time.
她肯定会准时到达。
- They are certain to enjoy the trip.
他们肯定会享受这次旅行。
- The project is certain to succeed with their hard work.
有了他们的辛勤工作，这个项目肯定会成功。
- The decision is certain to bring positive results.
这个决定肯定会带来积极的结果。
反义词：
5
确定的, 可靠的
dependable and guaranteed to produce a specific result
- There is a certain remedy for the common cold that helps alleviate symptoms.
有一种确定的治疗普通感冒的方法有助于缓解症状。
- He found a certain solution to the problem after much research.
经过大量研究后，他找到了问题的确定解决方案。
- A certain technique has proven effective in treating the condition.
一种特定的技术已被证明在治疗该病症方面有效。
- There’s a certain way to approach this problem for the best result.
有一种特定的方法可以解决这个问题以获得最佳结果。