Perlition
表面渗碳用液体渗碳剂
🗣️ 情景例句
I know. How old is she?
我知道。她多大了？
I worked at the hardware store this afternoon.
我今天下午在五金行工作。
My sister is only seven, but she always tells me whether my pictures are good or not.
我的妹妹只有7岁，但她总能说出我的画是好还是坏。