Pfas
abbr. personal fall arrest system 防坠落系统; [医][=performic acid-Schiff reaction]过氧甲酸-席夫反应
🗣️ 情景例句
He made up his mind to give up smoking.
他下决心戒烟。
The proof of the pudding is in the eating.
空谈不如实验。（实践出真知）
We hope that the next negotiation will be the last one before signing the contract.
我们希望下一交谈判将是签订合同前的最后一轮谈判。