Sodium tetrasulfide
[机] 四硫化钠
🧩 词语组成解析
sodium
['sodɪəm]
n. <化>钠(11号元素，符号 Na);
四硫化物
🗣️ 情景例句
And you didn't exercise?
你没有参加健身操？
This river is one third as long as that river.
这条河只有那条河的三分之一长。
He's fine, thanks.How's Emma?
他很好，谢谢。埃玛好吗？