单词	流者
释义	同Glider
随便看	principal maintenance period principal main track principal manager principal market principal mask principal matrix principal maximum principal medical officer 主治军医 principal meridian principal merrdian principal minimum principal minor principal minor determinant principal mode principal mode of vibration principal moment of inertia principal moments principalness principalnesses principal nilpotent element principal norm principal normal principal normal form principal normal section principal (not interest)