Perlition
表面渗碳用液体渗碳剂
🗣️ 情景例句
Nice talking to you, sir.
我也很高兴与您交谈 ，先生。
Many hands make light work.
人多好做活。
Growth, however, brings new problems and concerns.
不过，发展也带来了新的问题和顾虑。