Perthiocarbonate
过硫碳酸盐
🗣️ 情景例句
The cloning of human organs is controversial.
人类器官克隆是极具争议性的。
How long will the sale last?
折价销售多久？
If we could stay as vigorous as we are at twelve,
假如我们能保持12岁时的旺盛生命力，