Perfluorocarbon
全氟化碳
🗣️ 情景例句
Don't move! Get down on the floor.
别动！趴到地上！
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。
and it seemed as though everything she possessed had been tossed out and turned over and over.
看来她的每一件东西都被翻了出来，并且被里里外外看了遍。