Stoichiometry
n. 化学计算, 化学计算法, 化学计量学\\n[化] 化学计量学; 化学计量法
🗣️ 情景例句
Good afrernoon, Miss Wang. Please sit down.
下午好。王小姐，请坐。
To worry about tomorrow is to be unhappy today.
担心明天，今天就不愉快了。
Was the noise a cause of the illness, or were the complaints about noise merely a symptom?
是噪音引起了（精神）病呢，还是（精神）病的症状之一是对噪音的抱怨？