降肾上腺素

例句：

1. 1. The athlete's heart races as he runs up the hill.
   这位运动员在跑上坡时心跳加速。
2. 2. The doctor prescribed epinephrine to help her fight off the infection.
   医生开了肾上腺素来帮助她对抗感染。
3. 3. The sudden surge of adrenaline made him forget his fear.
   突如其来的肾上腺素激增让他忘记了恐惧。