我听说柔道师们系上不同颜色的带子以表明他们的段位。

I hear judokas wear belts of different colors to show their technical rank.

youdao

我听说柔道师们系上不同颜色的带子以表明他们的段位。

I hear judokas wear belts of different colors to show their technical rank.

youdao