更新时间：2026-07-07 23:45:37
jack-knife
jack-knife是什么意思？
vi.-knifed；-knifing 中间呈V形弯
- 单词
- jack-knife
vi.-knifed；-knifing 中间呈V形弯
名词 jackknife:- a large knife with one or more folding blades
- a dive in which the diver bends to touch the ankles before straightening out
动词 jackknife:- dive into the water bending the body at the waist at a right angle, like a jackknife
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