Endorphin
[化] 内啡肽
🗣️ 情景例句
Neither.
都不是。
Observation is the best teacher.
观察为良师。
recorded for the slumbering scientist the strength of a shock that was too weak to waken him,and the direction from which it came.
由于地震太弱而未惊醒科学家时，就为科学家记录下了地震的强度和地震方向。