jackknifed的读音 jackknifed中文意思

读音 
v. 对折,用折叠刀切( jackknife的过去式和过去分词 )
jackknifed 用法和例句
He jackknifed on the sofa beside the christmas tree .
他弯腰地坐在圣诞树旁的沙发上。
A truck that had jackknifed was blocking the road .
那辆被撞弯的卡车正堵塞着道路。