That's why polystyrene is ideal for use in bicycle helmets and other protective gear.

这也是为什么聚苯乙烯是制作自行车头盔以及其他保护装置的理想材料的原因。

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Hovding is a protective collar designed for people that hate wearing helmets.

Hovding （官方网址）是一种高翻领样式的衣领，专门为不喜欢戴头盔的人设计。

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Wear Helmets and protective body gear - How many motorcyclists, bicyclists, skateboarders, etc. do see foolishly blazing around without wearing any form of protective body gear?

佩带头盔和护具——许多骑摩托车的人、骑自行车的人和滑板的人，等等，他们不佩带任何护具到处穿行。

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Police, dressed in helmets and protective clothing, smashed their way into Mr Ahmad's home just after 0500.

BBC: Police officers 'attacked' terror suspect Babar Ahmad

After the city's car culture created a smog problem, scientists started researching protective helmets to protect people.

CNN: China needs smog-free air in a can

Examine helmets and other protective gear to see if better equipment is necessary.

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