Alkalometry
生物碱测定法
🗣️ 情景例句
Success amply rewarded his efforts.
成功使他的努力得到应有的回报。
John has extracurricular activities. He's on the football team.
约翰有课外活动。 他参加了足球队。
He grasped both my hands.
他紧握住我的双手。