Harley's core customer is a middle-aged white American male, a group that will contract in the coming decade.

哈雷的核心顾客群是美国中年白人男性，这一顾客群体的规模将在下一个十年内渐渐缩小。

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The gleaming white Ares I-X, at its core, is a giant solid rocket booster.

闪闪发亮的白色战神i - X的核心是一个巨型固体燃料火箭推进器。

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All that carbon and oxygen — byproducts of the helium fusion process — build up in its core. At that point the star will shed its outer layers and the core will form a White Dwarf.

所有氦聚变中的附产物碳和氧在它的核心逐渐积聚，这期间它将失掉较外层物质，核心最终枯萎成为白矮星。

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And it's interesting to contrast what they're saying to themselves about al-Maliki with what they say publicly about al-Maliki when they talk to the press core at the White House.

NPR: Memo Reveals Security Council's Doubts on Al-Maliki

Saturation advertising of the mix-and-match of the core elements has made white and khaki a uniform.

CNN: An All-New Dress For Success

And in order to allow the Secret Service to best fulfill its core mission, the White House made the decision that we would, unfortunately, have to temporarily suspend these tours.

WHITEHOUSE: Press Briefing