VERB (铰接卡车失控时)弯成V字形,弯折 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. (铰接卡车失控时)弯成V字形,弯折
His vehicle jack-knifed, and crashed across all three lanes of the opposite carriageway. [VERB]