1, meaning different: tenacity: it is a commendatory term to describe people's strength and courage. Fierce: refers to light, brave and fierce. Describe agile and brave, flexible and brave.

2. Different radicals: the radical of "Biao" is "Yun" and the radical of "Piao" is "Xian".

3, tough can describe Ma tough The word was originally used to describe people or things, but in some literary works, it is also used to describe horses, such as describing their incomparable strength and speed. In addition, the horse is a very powerful and resilient animal, which has also played a very important role in human history, so it is also very appropriate to describe the horse as "tough".