Cementite
n. 碳化铁\\n[化] 渗碳体; 碳化铁体
🗣️ 情景例句
Turn the key before you pump the pedal, or you'll flood the engine.
加水之前转动钥匙，要不发动机就给浇灭了。
I'm sorry. I was just playing football with my friends.
对不起，我只是和朋友去踢了足球。
But they still put their stockings at the end of their beds.
但他们仍然把自己的长统袜挂在床脚边。