Perfluorocarbon
全氟化碳
🗣️ 情景例句
You will come up with the right answer.
你会想起正确的答案的。
The first wealth is health.
健康是最重要的财富。
We informed him that the fissure extended for fifty years and was tow feet wide and four feet deep.
我们告诉他那个大裂缝长50码，宽2英尺，深4英尺。