由于快速的出口增长平衡了客观存在的赤字，进而使得内需走弱的美国经济维持了全面扩张。

The United States economy maintained its overall expansion as weaker domestic demand was balanced by a reduction in the external deficit, mainly due to a faster export growth.

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血管畸形中血管极度扩张，VEGF表达极弱。

In vascular malformation, vessels dilated abnormally with weakly expressed VEGF.

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2001年至2007年经济扩张周期的就业增长弱于90年代末的繁荣时期，因此雇主加薪的压力也就更小。

S. Job growth during the 2001 to 2007 expansion was weak compared to the late 1990s boom, thus putting less pressure on employers to dole out pay increases.

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