That means early signs of economic recovery, like the way plants begin to shoot up from the ground as a sign of spring.

“绿牙”是指经济恢复的初步迹象，犹如植物开始从地面发牙是春天的迹象（那样）。

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That means early signs of economic recovery, like the way plants begin to shoot up from the ground as a sign of spring.

VOA: special.2009.05.08

Early signs of economic recovery in 2012 are appearing with muted analyst opinions in the transportation space, even as manufacturing data are showing improvement.

FORBES: Concern Over Freight Demand In 2012 Leads To J.B. Hunt Downgrade

John Chambers, CEO of Cisco Systems, the largest maker of networking systems in the world, also considered a key bellwether of technology spending, shook the market in early August when he warned that Cisco was seeing signs of the global economic recovery slowing down.

FORBES: Warnings From Tech Sector, Bad News For Economy