Anchiornis's wrist bone was so wedge-shaped that it could fold its arms to its sides, keeping its arm feathers off the ground as it walked.
近鸟龙的腕骨呈深楔形，因此它可以将前肢折叠到身体两侧，行走时前肢上的羽毛可以悬空，不会拖在地面上。
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A large Armenian population wasn’t so happy, and Armenia drives a physical wedge through the small nation cutting off an even smaller exclave called Nakchivan from the main territory.
Obama arrived on the millionaires' playground off the US east coast on Sunday, and planned to get stuck into a list of books -- amounting to a wedge of nearly 2,300 pages, revealed by Burton.