jack-knife

vi. -knifed, -knifing 中间呈V形弯

英英释义

名词 jack-knife:

a large knife with one or more folding blades

同义词：clasp knife, jackknife

a dive in which the diver bends to touch the ankles before straightening out

同义词：jackknife

动词 jack-knife:

dive into the water bending the body at the waist at a right angle, like a jackknife

同义词：jackknife

补充