Polyfluoride
多氟化物
🗣️ 情景例句
I know.
我知道。
At Xmas time, Debra began to dream of all the presents.
到了圣诞节的时际，黛布拉开始梦想着所有的礼物。
The great statue, which was designed by the sculptor Auguste Bartholdi, took ten years to complete.
这座由雕像家奥古斯特。巴索尔地设计的巨大雕像是用10年时间雕像刻成的。