Carburizing
[机] 渗碳
🗣️ 情景例句
What do you propose to do about it?
那你建议要怎么办？
All are not merry that dance lightly.
表面高兴的，未必都快乐。
Despite her great age, she was very graceful indeed,
尽管上了年纪，但体态确实优美。