Pentoxide
n. [化]五氧化物
🗣️ 情景例句
I heard that you get vitamin D from sunshine, and that you soak it like a sponge.
我听说人们像海绵一样从阳光中摄入维生素D。
He is playing on the swings outside.
他正在外面荡秋千。
Shall we go to the park?
我们去公园玩好吗？