Of course, be sure they have on protective gear, including a helmet, knee pads and elbow pads.
当然，要确保他们有防护装备，包括头盔，护膝，护肘。
Ensure that the activity is age appropriate and provide protective equipment such as helmets, wrist pads, and knee pads.
确保活动适合个人年龄并提供护具，例如头盔、护腕和护膝。
It is being incorporated into various things - from protective sportswear, shin pads and motorcycle clothing, to police body armour.
它可以用来制作多种用品，从防护型运动装、护腿板、摩托车服，到警用防弹衣等等。
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