单词	When we drink water
释义	When we drink water 饮水思源
随便看	radio professionally radio program radio program circuit radio program circuit branch radio program circuit equalization syste radio program circuit equlaization syste radio program circuit rating radio program for listeners overseas radio programme radio program network radio program transmission radio promotion Radiopronator reflex radio propagation radio propagation forecast radio propagation in earth-ionosphere waveguide Radio propagation in mobile communication radio propagation medium radio propagation model radio propagation prediction Radio Propagation Unit radio prospecting radioprospecting assembly radio prospection radioproteclant