50年前由当时新兴的非洲独立国家继承下来的公路铁路基础设施，现在很大一部分都已经年久失修。
A large part of the road and rail infrastructure inherited by newly independent African countries about 50 years ago has fallen into disrepair.
为了确保核设施和核燃料的安全，必须建立一个独立行使职权的安全管理机构。
The establishment of an independent nuclear safety regulatory body is necessary for ensuring the safety of nuclear installations and nuclear fuel.
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