Ferramic
粉末状的铁磁体
🗣️ 情景例句
Good-bye. Take care of yourself.
多多保重，再见。
I can manage. But thank you, anyway.
我自己行了，但还是要谢谢您。
engineers may soon be free to let their imaginations soar without being penalized by expensive failures.
因此，工程技术人员可能很块就可充分发挥他们的想像力，而不会因失败而造成经济上的损失。