a yang ko troup的用法和样例：
- Study of flies buzzing is still flying the teacher hands a Yang bar is heard is a fly to the nailed a wooden partition.
- Paired with the Kidney, the Urinary Bladder is a Yang organ in charge of storing and excreting urine, much as we understand it in western medicine.
- There is a vein of melancholy in his character.
- There was a long lag in forwarding mail to us.