插扣 [词典] eye-splice; [例句]可调节插扣,使泳圈牢固贴合,不易滑脱。 Adjustable buckle makes swimming ring close to body firmly. 塑料扣 plastic buckle; [例句]各种规格的金属扣,塑料扣都可定做模具。 Each kind of specification\'s metal buckle, the plastic buckles may make to order the mold.参考知识1插扣塑料扣 Plastic buckle