沉船沉物打捞清除课题长久以来一直未受到国内法学界的重视。
The subject of wreck removal has been ignored by Chinese jurisconsults for a long time.
旅游合同的研究，一直是目前国内法学研究领域相当薄弱的环节。
The study of travel contract is a quite weak link in the field of legal research now in our country.
旅游合同的研究，一直是目前国内法学研究领域相当薄弱的环节。
The study of travel contract is a quite weak link in the field of legal research now in our country.
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