Silicides
硅化物
🗣️ 情景例句
That's quite true, but on the other hand, we have to think of our priorities.
那很有道理，但我们还必须分清轻重缓急。
Where is the telephone office?
电话局在什么地方？
Before? After? said the doctor.
“饭前？饭后？”医生说。