Jackknife
01
屈体跳水, 折刀式跳水
a dive in which the diver bends to touch the ankles before straightening out
02
折刀, 大折刀
a large knife with one or more folding blades
to jackknife
01
违反规则或公认的秩序行事, 违背一般惯例行事
contrary to rule or accepted order or general practice
02
做折刀式跳水, 以直角弯曲身体跳水
dive into the water bending the body at the waist at a right angle, like a jackknife
03
折叠, 像折刀一样折叠
(of articulated vehicles such as tractor trailer) to experience a loss of control where the front and rear parts of the vehicle fold together
