求英文老歌翻一下这个MC是什么意思

wxnter-avatar

wxnter

2022-04-26T14:48:07+00:00

[img]https://img.nga.178.com/attachments/mon_202205/04/-7Q7xe-1m81K11T1kSeb-6t.jpg[/img]
[img]https://img.nga.178.com/attachments/mon_202205/04/-7Q7xe-1m81K11T1kSeb-6t.jpg[/img]

是一种工业品的供求关系图
wxnter-avatar

wxnter

有没有老哥啊