Palau has only been an independent nation for twenty years and has a strong history of environmental protection.
帕劳成为一个独立的国家只有20年,但在保护环境方面已有长久的历史。
These deep ecosystems provide shelter, spawning and breeding areas for fishes and other creatures, as well as protection from strong currents and predators.
这些深海生态系统为鱼类以及其他生物提供生存,产卵以及繁殖的场所,也保护他们免受强流以及猎食者的袭击。
But some Americans fret that patent protection has grown too strong.
但有些美国人担心,专利保护已经过了。
Keeping bones strong with exercise may also help prevent fractures, especially if you wear the right sports protection during activities.
VOA: special.2009.02.04
So, if you were someone that was getting it after it had been passed through many people, you wouldn't have as strong or as lengthy a protection as the first individual did.
如果一个疫苗经过很多人的传递,再接种到你身上,你不会获得像第一个接受疫苗的人,那样强效持久的免疫效果
Strong fencing at watering points can offer protection.
VOA: special.2010.07.27
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