单词 | jack-knife |
释义 | jack-knife also jackknife Word forms: 3rd person singular presenttense jack-knifes, present participle jack-knifing, past tense, past participle jack-knifed verb If a truck that is in two parts jack-knifes, the back part swings around at a sharp angle to the front part in an uncontrolled way as the truck is moving. His vehicle jack-knifed, and crashed across all three lanes of the opposite carriageway. [VERB] |
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