Polyfluoride
多氟化物
🗣️ 情景例句
What are you trying to tell me?
你想告诉我什么？
That won't happen, will it?
不会吧？
Today, enough soundings are available to enable a relief map of the Atlantic to be drawn
现在已有足够的水深测量数据来绘制一张大西洋洋底地形图，