Tisab
[化] 总离子强度缓冲剂
🗣️ 情景例句
What did you tell Grandpa?
那你是如何对爷爷说的呢？
Soon learnt, soon forgotten.
学得快，忘得快。
Many people complain that computers are taking over their jobs.
许多人抱怨说计算机正在接管人的工作。