v.
formally reject or disavow a formerly held belief, usually under pressure
"He retracted his earlier statements about his religion"
同义词：abjurerecantforswearresile
pull away from a source of disgust or fear
同义词：shrink back
use a surgical instrument to hold open (the edges of a wound or an organ)
同义词：pull backdraw back
pull inward or towards a center
"The cat retracted his claws"
同义词：draw in
Cannula insertion set with safety retracting needle
The Centralia partial seam CRIP underground coal gasification experiment. [Controlled retracting injection point]
Controlled retracting injection point (CRIP) system: a modified-stream method for in situ coal gasification
On the Court Trial Reform: A Dialectical Analysis on the Witness' Testimony Retracting and the Altered Testimony
Biometric analyses of vibrissal tactile discrimination in the rat.
Centralia partial seam CRIP underground coal gasification experiment
A theory of diagnosis from first principles
Scanning electrochemical microscopy. Introduction and principles
Evolutionary Strategies and Morphological Innovations: Cichlid Pharyngeal Jaws
Electroanalytical and Bioelectroanalytical Systems Based on Metal and Semiconductor Nanoparticles
