Stoichiometer
[医] 化学计算器, 化学计量器
🗣️ 情景例句
He was very helpful to me, remember?
他帮过我大忙， 记得吗？
Would you like to have some dinner?
你想吃饭吗？
The baby was about ten months old. At first she was asleep.
那小孩大约10个月大。最初，她是睡着的。