他为裁军运动和反对核武器扩散而奔走。He campaigned for peace and against the spread of nuclear weapons.原油泄露后的浮油很快在水面上扩散开来。A crude oil slick quickly spreads out over water.有关于分子扩散速度的数据。There are data on the rates of diffusion of molecules....
Nearby there is a stretch of white sand beach perfect for sunbathing.附近有一片白色沙滩,是沐日光浴的绝佳场所。tourists sunbathing on the beach在海滩上沐浴着阳光的游客We've been sunbathing on the beach.我们一直在海滩上晒日光浴.What began as a postwar fetish fo...