单词	jackknife
释义	noun | verb jackknifejackknife1 /ˈdʒæknaɪf/ noun (plural jackknives /-naɪvz/) [countable] 1 a knife with a blade that folds into its handle2a dive in which you bend at the waist in the air and then make your body straight again before you go into the water 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
随便看	yellow yellow card yellow fever yellowish yellow jacket yellow journalism yellow pages yellow ribbon Yellow River, the Yellowstone National Park yelp Yeltsin, Boris Yemen Yemeni yen yeoman yep yer Yerevan yes yeshiva yes-man yes/no question yessir yesterday

英语词典包含48224条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。