Middle-income blacks are downwardly mobile. Why?

黑人中产阶级正在不断下滑，为什么？

Real after-tax incomes fell 0.1% in July, compared with a downwardly revised 0.1% gain in disposable incomes for June.

扣除所得税之后的个人真实收入，在7月份下跌了0.1%。 而相较于6月份，尽管处于下降趋势中，调整过之后的当月可支配收入仍旧有0.1%的增长。

The mill casing is provided with a downwardly aligned cylindrical collar which may be axially adjusted to set a grinding gap between the rotor and the mill casing.

所述磨机外壳配备有向下对准的柱形轴环，所述柱形轴环可以被轴向调 整以设置所述转子与所述磨机外壳之间的研磨间隙。

The idea is that for any amount of money-- if this x is the amount of money that I receive-- utility as the function of the amount of money I receive is downwardly-concave.

这种观点是对于任何数量的货币,假设我得到x数量的货币,随着货币的增加,边际效用呈,向下凹进去的曲线

金融市场课程节选 : 耶鲁公开课

Herman's childhood, upwardly and downwardly mobile, as his father's affairs prospered or, more often, failed.

ECONOMIST: American writers

The private sector added 162, 000 jobs in September, below the downwardly revised August figure of 189, 000.

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With some economists downwardly revising their forecasts, the consensus expectation was for a roughly 50, 000 gain in non-farm payrolls.

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