In the early 1970s, for reasons that are still ill-understood, productivity growth slowed sharply, pulling down the trend rate of growth.
在70年代早期，因为一些至今仍无法明确的原因，生产率增长大幅下降，使得趋势增长率也随之下降。
2
Another worry today is the risk of a slowdown in emerging markets pulling back growth everywhere.
如今另一个担忧是新兴市场的经济放缓可能会累及全球增长。
3
This global view is based on multispeed growth dynamics, with the healing and healthy segments of the global economy gradually pulling up the laggards.