| 单词 | warn |
| 释义 | warnwarn /wɔrn/ ●●● S3 W2 verb 1[intransitive, transitive] to tell someone that something bad or dangerous may happen so that it can be avoided or prevented: warn somebody about something She warned me about the broken chair.warn (somebody) of something You were warned of the risks involved.warn somebody (not) to do something I warned you not to walk home alone.warn somebody (that) We warned them that there was a bull in the field.2[intransitive, transitive] to tell someone about something before it happens so that he or she is not worried or surprised by it: warn (somebody) that He warned me that he might be late.3[transitive] to tell someone that he or she will be punished if he or she does something: Stop it now – I’m warning you.warn somebody about something I’ve warned you before about staying out late.4be warned used to tell someone to be careful because something has risks or problems that he or she may not know about: Be warned – the paint is difficult to remove from clothes. [Origin: Old English warnian]warn (somebody) against something phrasal verb to advise someone not to do something, because it may have dangerous or bad results: He warned her against such a risky investment.warn (somebody) against doing something Police have warned against approaching the man.warn off phrasal verb1warn somebody ↔ off to tell someone that he or she should not go near something, especially because it might be dangerous: A sign was posted to warn off trespassers.2warn somebody ↔ off, warn somebody ↔ off something to tell someone that he or she should not do or use something because it might be dangerous |
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