When the subprime mortgage crisis first hit headlines last year, observers hoped that the rest of the world had enough growth momentum and domestic demand to gird itself from the U.

• 去年，次贷危机刚刚登上媒体头条之时，专家曾希望，世界其他经济体能有足够的增长动力和国内需求，以应对美国减速的影响。