词汇	telephone loudspeaker
释义	telephone loudspeaker 电话扬声器
随便看	singular extremal singular field singular fields singular flexibility matrix singular focus singular form singular forms singular four-order BVP singular function singular function of bounded variation singular functions singular generator of a ruled surface singular generator of ruled surface singular gowth curve model singular grammaticalization singular graph singular ground-based gps singular Hamiltonian systems singular hidden pulse singular higher-order differential equation singular H-matrix singular homology singular homology class singular homology group singular homology theory