扩张: 1.(扩大) expand; aggrandize; enlarge; extend; spread; stretch; amplify; dilation; expansion; extension 短语和例子军事和政治扩张 military and political expansion; 海外扩张 overseas expansion; 对外扩张 expansioni
血管扩张: anapetiadilatation of the blood vesslesexangiaexpansion of blood vesselshamangiectasiahemangiectasiahemangiectasisvascular dilatationvascular ectasiavasodilatation