单词	on a certain day
释义	英華☞a certain day
随便看	electric propulsion electric propulsion bus electric propulsion plant electric propulsion ship electric propulsion thruster electric prospecting electric prospecting instruments electric prostration (或 sunstroke) electric protection electric protective device electric ptrssure electric pulse electric pulse motor electric pump electric pump control electric purification electric push button electric pyrometer electric quadrupole electric quadrupole lens electric quadrupole moment electric quadrupole--moment electric quadrupole transition electric-quadrupole transition electric quanntities