radiate
verb uk/ˈreɪ.di.eɪt/ us/ˈreɪ.di.eɪt/
(PRODUCE HEAT/LIGHT)
[ I or T ]（使热或光）辐射，放射，发散
to produce heat and/or light, or (of heat or light) to be produced
The planet Jupiter radiates twice as much heat from inside as it receives from the Sun. 木星内部散发出的热量是它吸收太阳热量的两倍。
A single beam of light radiated from the lighthouse. 一束光从灯塔射出。
(EXPRESS)
[ I or T ]流露；显示；焕发
to show an emotion or quality, or (of an emotion or quality) to be shown or felt
He was radiating joy and happiness. 他显得快乐而又幸福。
Enthusiasm was radiating from her. 她热情洋溢。
(SPREAD)
[ I + adv/prep ]从中心散开;呈辐射状发出
to spread out in all directions from a central point
Flows of lava radiated out from the volcano's crater. 滚滚熔岩从火山口流向四面八方。
Just before the breeding season, these birds radiate outwards to warmer climates. 每当繁殖季节即将来临，这些鸟飞向四面八方，迁徙到气候较温暖的地带。