If it's dark when you exercise outside, wear reflective clothing.

如果天色暗时在室外锻炼，则需要穿上可以反光的衣服。

youdao

If it's dark when you exercise outside, wear reflective clothing.

如果天色暗时在室外锻炼，则需要穿上可以反光的衣服。

youdao