单词	天然辐射
释义	天然辐射natural radiation
随便看	revenues from aid & assistance revenues from donations & contributions revenues from fines & indemnities revenues from loans & public debt revenues from monopoly revenues from properties revenues from self-governing revenues from special assessment revenues from taxes revenues from trust account revenue sharing revenue-sharing revenue-sharing plans revenue source revenue stamp revenue stream revenue tariff revenue tax revenue ton revenue track revenue vessel reverable reverb reverbarator reverbaratory