Hanging belays are done when there is no suitable ledge or foothold available. Most often done on difficult, multi-pitch climbs.

这种保护方式在没有合适的立足点时使用，通常用于困难的多段攀登中。

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"The jackals... Slipping back to the hills" (Lord Dunsany). More often, however, the term is applied to accidental sliding resulting in loss of balance or foothold.

“豺狼们…溜回了山里”(邓萨尼爵士)。而且，这个词更多地用于意外地由于失去平衡或立足点而打滑。

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A top priority at present is to prevent the virus from establishing a foothold in densely populated urban or peri-urban parts of the country.

目前一项首要重点是防止病毒在该国人口密集的城市或城郊地区立足。

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I've lost count of the number of reporters, columnists and critics who have been laid off or taken buyouts, only to launch blogs, join websites, churn out e-books or otherwise seek a foothold in the digital economy.

CNN: Journalists, take a hint from Andrew Sullivan

Forbes has covered SodaStream in the past, looking at their business model in detail and considering whether or not they can gain a foothold in a market dominated by giants like Coke and Pepsi.

FORBES: Hands on with SodaStream: Less Plastic Bottles, More Home Aesthetics

We seem to agree, however, on one thing: The Big Three would have a stronger foothold in Asia after buying or taking stakes in the Korean automakers.

FORBES: Readers Say