单词 | jackknife |
释义 | noun | verb jackknifejackknife1 /ˈdʒæknaɪf/ noun (plural jackknives /-naɪvz/) [countable] 1![]() noun | verb jackknifejackknife2 verb (jackknifed, jackknifing) [intransitive] 1if a large vehicle with two parts jackknifes, the back part swings toward the front part: A big-rig jackknifed on the highway.2to perform a jackknife dive into water |
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