1. The phrase "biting the bullet" is used to describe a person's determination, perseverance, and ability to overcome difficulties, and does not directly refer to a specific Chinese zodiac animal.2. Among the twelve Chinese zodiac animals, the ox is a symbol of hard work and resilience, which aligns closely with the spirit of biting the bullet.3. Oxen are known to bite down on their loads while plowing fields, showcasing a similar tenacity to that described by the phrase biting the bullet.4. The tiger, too, embodies strength and perseverance, relentlessly pursuing its prey, which reflects the spirit of biting the bullet.5. While the tiger is often associated with power and majesty, biting the bullet is more commonly used to describe a sustained effort and determination.6. The dragon, a symbol of auspiciousness and strength in Chinese culture, is not directly related to biting the bullet, but its imagery encompasses the overcoming of difficulties and the pursuit of success.7. In conclusion, if one were to choose a zodiac animal that best represents the spirit of biting the bullet, the ox would be the most fitting due to its association with diligence and resilience. Additionally, the tiger and dragon also share some alignment with the spirit of biting the bullet, given their respective qualities.