| 单词 | certain |
| 释义 | determiner | adjective | pronoun certaincertain1 /ˈsɚt˺n/ ●●● S1 W1 determiner 1[only before noun] used to talk about a particular person, thing, group of things, etc. without using names or exact descriptions: Some vegetables are only available at certain times of the year. You have to be a certain height to go on some of the rides. There are certain things I just can’t talk to my mother about.a certain kind/type She has trouble spelling certain types of word.certain circumstances/situations Air bags in cars pose a danger to children in certain circumstances.► see thesaurus at particular12some, but not a lot: There is a certain amount of risk involved. In certain ways Martha’s good to work for, but she can be really tough.3to a certain extent/degree partly, but not completely: To a certain extent, just about every business here is dependent on tourism. Pollution can affect the acidity of water to a certain degree.4a certain a)enough of a particular quality to be noticed: A baby was crying, and I felt a certain sympathy for it. The restaurant has a certain charm. b)formal used to talk about someone you do not know, but whose name you have been told: There’s a certain Mrs. Myles on the telephone. [Origin: 1200–1300 Old French, Vulgar Latin certanus, from Latin certus decided, certain] determiner | adjective | pronoun certaincertain2 ●●● S3 W2 adjective 1[not before noun] confident and sure, without any doubts that something is true SYN sure OPP uncertain: She thought it was the same man, but she couldn’t be certain.certain (that) I’m almost certain that I passed the test.certain who/what/how etc. Doctors are not certain what causes the disease.certain of/about Never eat a wild plant unless you are certain about what it is. We are not certain of victory (=not sure that we will win).► see thesaurus at sure12know/say/tell etc. for certain to know, say, etc. something without any doubt: We may not know for certain until next year. No one can say for certain what will happen.3make certain a)to do something in order to be sure that something is true or correct SYN make sure: make certain (that) I went back into the house to make certain the stove was turned off. b)to do something in order to be sure that something will happen SYN make sure: I wanted to make certain that the kids would have a good time.4if something is certain, it will definitely happen or is definitely true: Her business faces certain bankruptcy.it seems/is certain (that) It seems certain that several of the streets will be closed.certain to do something Beginning golfers are almost certain to get frustrated.it is not certain who/what/how etc. It is not certain whether the fires were set deliberately (=no one knows for sure).almost/fairly/virtually certain The case is almost certain to cause controversy.5one thing is for certain spoken used when you are very sure about something, especially in a situation when you cannot be sure about other things: One thing is for certain – we’ll try our best. determiner | adjective | pronoun certaincertain3 pronoun formal certain of somebody/something several specific things or people in a group: Certain of the documents were kept secret. |
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