Pentasulfide
五硫化物
🗣️ 情景例句
2,3,4 ... now switch. ... 2 3 4
……现在 左右交替……
Beauty, unaccompanied by virtue, is as a flower without perfume.
美而无德犹如花之无香。
Nice to meet you.My name's Sophie.
很高兴见到你。我的名字叫索菲娅。