Perlit
波利特铸铁, 珠光体铸铁
🗣️ 情景例句
It looks wrong.
看起来不对劲。
Children enter school at the age of five,don't they?
孩子们在5岁时入学吗？
However, Susan has not really made up her mind yet.
然而，苏珊却还没有决定。