Phosphorroesslerite
重磷镁石
🗣️ 情景例句
I was really worried.
刚才我真的很担心。
And straightforward communication will serve as a useful basic of successful business transactions.
以及坦率的沟通，这些将构成顺利生意交涉的有效基础。
This combines a typewriter keyboard, a printer and a computer.
这种机器把打字机键盘、打印机和电脑连接起来。