Much more than the crust, the mantle contains information about a planet's or moon's total composition.

地幔包含的远远不仅是地壳，还有关于行星或卫星的总体构成的信息。

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The composition of total demand in the economy is unchanged but increasingly favors government.

FORBES: Doubling Down on the Payroll Tax Holiday Still Won't Create Jobs

In the big scheme of things, the differences in composition between total bond market index funds and the actual U.S. bond market is not large (excluding municipal bonds).

FORBES: Total Bond Index Funds are Not the Total Bond Market

The next biggest expenditure, I believe, in the composition of the total is the payroll tax cut.

WHITEHOUSE: Press Briefing