Polythionate
连多硫酸盐
🗣️ 情景例句
if we can put up some collateral.
如果我们能提供担保物的话。
Everything has its time and that time must be watched.
任何事情都有好的时机，不要随意放过。
Can you describe it, sir?
先生，您能描述一下它是什么样子的吗？