这种非墨水打印的字,会在一段时间之后消失,时间长短由你随便控制。

So this is a non-ink based print that disappears in a time frame that you can program, hours, days whatever.

youdao

这种非墨水打印的字,会在一段时间之后消失,时间长短由你随便控制。

So this is a non-ink based print that disappears in a time frame that you can program, hours, days whatever.

youdao