Crowded markets are a happy hunting ground for pickpockets.

拥挤的市场是扒手大展身手的好地方。

《牛津词典》

The Sunday antique market is a happy hunting ground for collectors.

周日的古董市场是收藏家的淘物乐园。

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Britain's open economy has made it a happy hunting ground, because the Spanish encounter less opposition than in France and Italy.

英国在经济方面的开放政策使得西班牙的觅食者们在这尽享捕食带来的快乐。而在法国和意大利，则远没有在英国这么畅通无阻，这么天随人愿。

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The Canadian Energy Field has become a happy hunting ground for higher yields than you can find outside the junkiest of junk bonds.

FORBES: Out of Energy

But at a time when most working-class white voters are furious at the Democrats, the states where these voters are concentrated have become a happy hunting ground for Republicans.

ECONOMIST: Lexington