radiate 辐射，发射，广播
例句：What distinction do ultraviolet radiate and computer radiate have? How to prevent respectively?
紫外线辐射和电脑辐射有什么区别？分别怎样预防？
radio 收音机，无线电
例句：They are in twice daily radio contact with the rebel leader.
他们每天用无线电和叛军首领联系两次。