Semifusinite
[地质]半丝碳煤素质
🗣️ 情景例句
You asked to see me.
你要求见我。
I need it for the parking meter.
我需要零钱投停车记时器。
One is the general atmosphere of secrecy in which it is carried out,
一是科研工作中普遍存在的保密气氛；