零售商之所以称之为「黑色星期五」是因为通常黑颜色在帐本上记录是营收获利，亏损则用红色记载。

Retailers call it "Black Friday" because profit in accounting books is traditionally recorded in black and debt in red.

youdao

零售商之所以称之为「黑色星期五」是因为通常黑颜色在帐本上记录是营收获利，亏损则用红色记载。

Retailers call it "Black Friday" because profit in accounting books is traditionally recorded in black and debt in red.

youdao