Whose coat is this? =Whose is this coat?

这是谁的外套？

She asked whose coat that was.

她问那是谁的上衣。

The Great Pyrenees is a dog of medium substance whose coat deceives those who do not feel the bone and muscle.

大庇里牛厮山犬的骨骼和肌肉是中等的，但披毛可去欺骗敌人，让对方感觉不出来实际的体型。