jackknife

n. 大摺合式刀、屈體跳水

vi. 彎身

vt. 用大折刀切

學術名詞

• 摺刀法：統計學

英文釋義

1. a large knife with one or more folding blades
2. a dive in which the diver bends to touch the ankles before straightening out
3. dive into the water bending the body at the waist at a right angle, like a jackknife