单词	官方开发援助
释义	官方开发援助Official development assistance
随便看	effective downwash effective duration effective earth radius effective efficiency effective elastic thickness effective elastic thickness (eet) effective electromotive force effective electron temperatures effective electron velocity effective embedment level effective emissivity effective end date effective end date of provider role effective energy effective environment effective equivalent dose effective equivalent dose rate effective equivalent section effective error effective error mean square effective estimator effective evaporation effective evapotranspiration effective exchange rate effective excitation force