The ship was buried, beyond retrieval, at the bottom of the sea.
船已葬身海底，无法打捞。
If mail order catalogs are your weakness, take them out to the garbage and push them down to the bottom to head off a middle-of-the-night retrieval.
如果邮购目录是你的弱点，把它们扔到垃圾箱底以防自己半夜再把他们找回来。
DRIS is a hierarchical distributed Internet information retrieval system. It can provide a set of information resources integration solution from the bottom layer to application layer.
域内资源整合系统是一种分层的分布式互联网信息检索系统，其提供了从底层到应用层的一整套互联网信息资源整合利用方案。
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