noun🔗Share棘爪，止回爪。 A pawl, click or detent for holding or propelling a ratchet wheel, or ratch, etc."The mechanic carefully adjusted the ratchet to loosen the bolt. "机械师小心地调整棘轮扳手的棘爪，以便松开螺栓。technicalmachinepartdeviceChat with AIVocabulary GamePractice Reading
noun🔗Share棘轮, 棘齿。 A mechanism composed of a ratchet wheel, or ratch and pawl."The bicycle's ratchet allows the pedals to move the wheels forward but prevents them from spinning backward. "这辆自行车的棘轮可以让脚蹬带动车轮前进，但防止车轮倒转。machinedeviceparttechnicalChat with AIVocabulary GamePractice Reading
noun🔗Share棘轮扳手，快速扳手 A ratchet wrench."I used the ratchet to quickly tighten the bolts on my bicycle. "我用棘轮扳手很快地拧紧了自行车上的螺栓。devicemachinetechnicalChat with AIVocabulary GamePractice Reading
noun🔗Share单向机制，累进机制。 (by extension) A procedure or regulation that goes in one direction, usually up."The new school policy is a ratchet: student participation in extracurricular activities now requires a minimum of 10 hours per week. "新的学校政策是个单向机制：现在学生参加课外活动每周至少需要10个小时。systemprocessdirectionChat with AIVocabulary GamePractice Reading
verb🔗Share逐步增加, 逐步减少 To cause to become incremented or decremented."He used the lever to ratchet the tension on the rope, making it tighter with each pull. "他用杠杆来逐步增加绳子的张力，每次拉动都让绳子更紧。technicalmachinetechnologyChat with AIVocabulary GamePractice Reading
verb🔗Share递增或递减, 逐步调整 To increment or decrement.""He used the lever to ratchet the car jack up another inch." "他用杠杆一格一格地把千斤顶升高了一英寸。technicalmachinetechnologyfunctionprocessChat with AIVocabulary GamePractice Reading
adjective🔗Share俗气，邋遢。 Ghetto; unseemly, indecorous."Her ripped dress and loud, argumentative behavior at the party were considered quite ratchet. "她在派对上穿的破烂裙子和大声吵闹的行为，让人觉得非常俗气邋遢。culturelanguagestylesocietyChat with AIVocabulary GamePractice Reading
