Nitrocobalamin
硝钴胺
🗣️ 情景例句
He keeps himself fit by running 5 miles every day.
他每天跑五公里以保持身体健康。
Napolean himself was once a crying baby.
即使是拿破仑，过去也是啼哭的婴孩。
When did you last go to the seaside?
你上一次是什么时候去海滨的？