Polyiron
多晶形铁, 树脂羰基铁粉
🗣️ 情景例句
Yes, let me try. Oh, it's difficult. Will you show me how to do it?
好吧，让我试试吧！哦，真不容易。能教我怎么用吗？
A penny saved is a penny gained.
省一文是一文。
in short, the individual in conflict with himself and his frontier environment.
总之，主人公是一个自相矛盾，又与他的拓荒环境相矛盾的人物。