一位年轻的父亲帮助女儿穿上膝盖安全装备骑自行车 A young father helps her daughter to put on knee security equipment for bike riding

在温柔的照顾下，这位年轻的父亲勤奋地帮助他心爱的女儿穿上安全骑行所需的膝盖安全装备。

With gentle care, the young father diligently assists his beloved daughter in donning the essential knee security equipment required for a safe bike riding experience.