[2] This is the first song, which uses metaphor to write the martial spirit of the northern nationalities. Health, athletes.

[3] Yao Yao: As small as an eagle, he catches birds for food.

[4] Two-way waves: Like splitting waves, the two sides fly separately.

"Health" means being an athlete. Comparing themselves to birds of prey and enemies to sparrows vividly shows their true nature of "strong body". They also love beautiful girls, but they love "broadsword" and "fast horse" more.