They're such lousy swimmers that some zoos have stopped surrounding enclosures with moats –too many orang-utans have drowned.

它们的水性非常差，以致有些动物园已经不再以壕沟做围护，因为溺死的红毛猩猩太多了。

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All of the exhibits are designed with barriers, moats, walls or fencing, quite often fencing that's difficult for visitors to see.

所有的展品都设计了栅栏、壕沟、墙壁或篱笆，不过不会使游客们难以看清展品。

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Stock with companies with narrow "moats".

选择少有“护城河”的公司。

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Reagan was concerned about a fence, while the recent crop of would-be-Reagans spout nonsense about walls with moats topped by electrified fences.

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Believing that newspapers were still, as they always had been, protectable products with moats around their geographic markets, Tribune paid handsomely to buy several papers, including the Los Angeles Times.

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Tory MPs with their moats and country homes and porticoes (whatever the hell they are) have already got away from the working classes as fast as they possibly could and now use their expenses to shore up the defences.

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