Monosulphide
一硫化物
🗣️ 情景例句
This is Alexandra Pappas, and this is my grandson Robbie,
这是Alexandra Pappas ，这是我孙子Robbie
Kindness always begets kindness.
善有善根。
She did not even look up when I took my seat beside her.
当我在她身旁坐下来的时候，她甚至连头都没有抬一下。