头盔有不同种的类型，有些头盔的前方带有塑料帽舌是为了保护眼镜免遭太阳的暴晒和雨天的雨水。
Helmets come in many different shapes Some have plastic visors on the front to shield eyes from sun or rain.
报道称，医生建议李明博手术后最少要戴眼镜两周，以保护眼睛。
The report said Lee has to wear the glasses for at least two weeks, as suggested by his doctor。
这种隐形眼镜，在未来两年将进行人体试验，同样可以保护眼睛受到阳光的损害。
The lenses, which are due to be tested on people within the next two years, have the added benefit of protecting the eye from sun damage.
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