同义词： clasp knife
以上来源于: WordNet
V-I If a truck that is in two parts jackknifes, the back part swings around at a sharp angle to the front part in an uncontrolled way as the truck is moving. (两截的卡车失控时形成)弯折
Traffic on the Pacific Highway near Yatala was delayed early yesterday after a semi-trailer jackknifed and left the road.
昨天早些时候在太平洋高速公路靠近亚塔拉的地方，一辆半挂卡车弯折并冲出道路后，交通发生了堵塞。
It had jackknifed into a ditch and had to be abandoned by its crew.
大炮身管弯曲，扎在一道壕沟里，已被炮组丢弃。
At another, a minibus lay crushed beneath the hulk of a jackknifed truck.
而在另一边，一辆微型车被撞碎，被压在车身已扭曲的卡车下面。
Who knows, they actually may be lounging at Starbucks rather than sitting in their car behind a jackknifed semi.
谁知道呢，他们可能会在星巴克里面休闲，而不是呆在车里停在在长长的车龙中间。
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