blue tongue disease的用法和樣例：
例句
- Once an area is infected with bluetongue, the disease is even harder to eradicate than foot-and-mouth.
一旦藍舌病疫情在某地區爆發(fā)，這種病毒甚至比口蹄疫更難根除。 - Yet bluetongue, in the long run, may prove a bigger irritant than foot-and-mouth.Of African origin, the disease has been spreading around the world for decades.
然而從長(cháng)遠的角度而言，相比口蹄疫，藍舌病可是一個(gè)更大的刺激。
