Sesquisulfide
倍半硫化物, 三硫化二...
🗣️ 情景例句
If he weren't so famous, he wouldn't treat others like that.
如果他不是这么有名，他也不会那样对待别人。
They teach you English in an intensive course lasting just a week.
他们用一周的时间教速成英语课程。
Oh! She's falling off her bike. I hope she didn't hurt herself.
噢！她正从自己的自行车上跌落下来。我希望她没有摔伤。