China celebrates it as one of the nation's greatest technological feats. But some experts worry that global warming may render it useless.

中国称其为是一项丰功伟绩，然而，一些专家则担心全球变暖会破坏它。

youdao

The fault lies on both sides-but some of it reflects bad staff work that has made Mr Obama's summits with the EU and NATO both boring and useless.

他们两方面都存在过错，但是这也一定程度上折射出其职员工作做得很差劲，以至于奥巴马无论同欧盟或者北约的峰会都很无聊也很无用。

youdao

But if you work for a small foreign company, or a local enterprise, some principles are useless.

但如果你所在的是一家小型外企或地方企业，有些规则就根本没用。

youdao

But the results would surely be a mixed bag: some good, some useless and some terrible.

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Far worse than useless would be a memorial to the dead which included some but not others.

ECONOMIST: Northern Ireland

Some of the rest regulates the genes, but most consists of stuff that is apparently useless or, worse, parasitic.

ECONOMIST: Some ��junk�� DNA may have a function