Stoechiometer
[医] 化学计算器, 化学计量器
🗣️ 情景例句
Where are you from?
你是从哪儿来的？
A strong grip was necessary to hold onto the large dog.
若要牵住大狗，必须用力握住皮带。
Jim, where's your father?
吉姆，你爸爸在哪儿？