noun🔗Share牵开器, 回缩器 One who, or that which, retracts."The stubborn window wouldn't stay open, so I used a doorstop as a retractor to hold it back. "这扇窗户太顽固，总是关上，所以我用门挡当牵开器，把它撑住。medicinedeviceChat with AIVocabulary GamePractice Reading
noun🔗Share退壳器，抽壳器 In breech-loading firearms, a device for withdrawing a cartridge shell from the barrel."The gunsmith used the retractor to remove the spent cartridge from the rifle's barrel. "枪匠用退壳器将步枪枪膛里的废弹壳取了出来。weapondevicemachinemilitarytechnicalpartChat with AIVocabulary GamePractice Reading
noun🔗Share回溯棋谜，撤步谜题 A chess puzzle in which a number of moves are retracted and the solver is challenged to reach an alternate outcome."The chess retractor presented a tricky challenge; after several moves, the solver had to figure out how to reach a different, winning position. "这个回溯棋谜极具挑战性；解题者在走了几步之后，必须想办法通过撤回棋步，达到另一种获胜的局面。gameentertainmentChat with AIVocabulary GamePractice Reading
noun🔗Share拉钩，牵开器。 A surgical instrument used to hold apart the edges of an incision or wound."The surgeon used a retractor to keep the incision open, giving him a clear view of the tissue underneath. "外科医生用拉钩/牵开器撑开切口，这样他就能清楚地看到下面的组织。medicinedeviceutensilChat with AIVocabulary GamePractice Reading
noun🔗Share保护软组织免受手术锯损伤的绷带, 牵开器. A bandage to protect soft parts of the body from injury by a surgical saw."The doctor used a retractor to protect the patient's delicate skin during the surgery. "手术中，医生使用一种保护性绷带（牵开器）来保护病人娇嫩的皮肤，防止被手术锯误伤。medicinedeviceChat with AIVocabulary GamePractice Reading
noun🔗Share缩肌，收缩肌。 A muscle serving to draw in any part."The doctor carefully used a retractor to pull back the cheek and get a better view of the tooth. "医生小心地用收缩器拉开病人的脸颊，以便更好地观察牙齿。anatomyphysiologymedicinebodyorganChat with AIVocabulary GamePractice Reading
