Nitrocementation
碳氮共渗
🗣️ 情景例句
You two belong on stage! That was wonderful!
你们俩简直是职业演员！ 读得太棒了！
Every bean has its black.
人人有其缺点。
One of links in the chain that drives the wheels had snapped.
驱动轮子的链条断了一节。