Given that core inflation was so low when the recession began, it is not a stretch to believe that, with so much slack in the economy, it could yet turn negative.

由于衰退之前的核心通货膨胀率并不高，人们很容易就会想到在经济萧条之后，通货膨胀率可能会降到负数。

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It's worth noting that the 13-inch MacBook Air, with its faster 1.86 GHz Core 2 Duo processor, wasn't a speed demon by any stretch, but was a tad faster.

值得注意的是，13寸吋的MacBook Air虽然采用了主频1.86 GHz的酷睿2处理器，不过运行速度也算不上超快，但还是要比11寸吋的Air快一些稍快一点。

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One of the most common types of core - spun yarns is that involving a core of a stretch filament such as spandex with a covering of staple fibers.

最常用的包芯纱之一是芯部采用弹力丝(例如氨纶)，表层使用短纤维。

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