jackknifes

美 [?d?æk?na?f] 　英 ['d?æk.na?f]

• n.大折刀；屈體跳水法
• v.用大折刀切；(跳水等時(shí))屈體
• 網(wǎng)絡(luò)刀切法；折刀法；杰克刀

詞形變化

復(fù)數(shù)：jackknives  第三人稱單數(shù)：jackknifes  現(xiàn)在分詞：jackknifing  過去式：jackknifed  

同義詞

英漢解釋

n.	1. 大折刀;屈體跳水法
v.	1. 用大折刀切 2. (跳水等時(shí))屈體

英英解釋

n.	1. a small knife with a blade that folds into its handle 2. a dive in which you jump high, touch your toes, and then stretch your legs out straight before entering the water with your hands and head first
v.	1. if a truck or train jackknifes, it bends in the middle and its connected parts fold toward each other