(pl. -knives /-naɪvz/)
1
- a large knife with a folding blade折叠刀。
2
- a dive in which the body is first bent at the waist and then straightened屈体跳水。
3
- Statistics a method of assessing the variability of data by repeating a calculation on the sets of data obtained by removing one value from the complete set【统计】刀切法, 折刀法。
1
-knifed, -knifing
with obj. move (one's body) into a bent or doubled-up position屈身, 弓腰：the Major jackknifed his thin body at the waist
少校弓着瘦弱的身体
no obj. she jackknifed into a sitting position.她屈身坐下。
1.1
- no obj.(of an articulated vehicle) bend into a V-shape in an uncontrolled skidding movement（铰接车）（因制动失控而）折成V形。
1.2
- no obj.(of a diver) perform a jackknife（跳水运动员）作屈体跳水。