certain

1. [P]无疑的,肯定的 without any doubt; sure
2. [A]某,某些 one or some that can be named

• certain circumstance某种情况
• certain extent一定程度上
• certain reason某种理由
• certain year某年

• absolutely certain绝对肯定
• almost certain几乎可以肯定的
• nearly certain几乎可以肯定的
• pretty certain肯定的
• quite certain相当有把握的
• totally certain完全确信

• make certain弄清楚〔明白,确实〕,落实
• make certain of the date of the meeting把开会的日期弄清楚

• certain to come一定来
• certain to happen一定要发生的
• certain to start一定发生

• certain about确信,深信,相信
• certain of确信,深信,相信
• certain of success肯定会成功

a certain extent一定程度上

a certain degree到某种程度

for certain肯定地；确凿地

certain level某一水平

a certain amount of一定数量的

certain of有把握，确信

certain effect一定的效果；确定效应

make certain弄清楚；弄确实

certain areas某些地区

to be certain肯定

under certain circumstance adv. 在某种情况下

make certain of把…了解清楚；弄明白

certain event必然事件；全事象

1. It's certain that every effect must have a cause.
   无疑，每个结果必定有其原因。
2. I can tell you for certain that I am always honest.
   我可以肯定地告诉你, 我一向是老实的。
3. Certain things are still open to discussion.
   有些事还需要商量。
4. A certain man will visit you tomorrow.
   明天某人将探访你。
5. For certain reasons I will be unable to attend the meeting.
   因为某种原因，我不能出席这次会议。
6. A certain Mr Brown telephoned while you were out.
   你出去的时候
7. To a certain extent, I'm in favor of your project.
   从某种程度上说,我赞成你的方案。
8. There was a certain coldness in her attitude towards me.
   她对我的态度有点儿冷淡。

1. Certain of those present had had too much to drink.
   有些出席的人喝得太多了。