You have to wear a knee pads.

你不得不戴上护膝。

youdao

You have to wear knee pads.

你不得不戴上护膝。

youdao

Sell: leather rope, hand, knee pads, pump seat cushion protective equipment.

自产：皮绳、护手、护膝、打气筒座垫等防护用品。

youdao

Sell: leather rope, hand, knee pads, pump seat cushion protective equipment.

自产：皮绳、护手、护膝、打气筒座垫等防护用品。

youdao