[請益] hand wringing and finger wagging?

[rain125 (for fun)]

在TIME看到的

原句在下:

Given that nearly 27% of U.S. adults are not just overweight but obese,
the idea of a pizza-size sandwich might be cause for hand wringing and
finger wagging, but very few Burger King customers will actually have access
to it.

(http://www.time.com/time/magazine/article/0,9171,2022651,00.html)

想請問 hand wringing and finger wagging是什麼意思呢?

慣用語的樣子

Thanks~~



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