In winter, the fox's fur trebles in length giving it the warmest coat in the animal kingdom.

冬季，狐狸毛长到原来的三倍长，是动物王国中最保暖的外衣。

Full cover All the doubles, trebles and accumulators involved in a given number of selections.

大包围固定选项数目中所有的孖宝、三宝和连赢。