Strong export growth has been a common feature sustaining activity throughout the region.
强劲的出口增长一直是整个地区保持经济活力的一个共同特点。
Equipped with a unique sixth digit, ideal for eating bamboo, pandas have been shaped by evolution for this life-sustaining activity.
那独特的六趾是食竹的理想“装备”，自然界的生存进化造就了现在的大熊猫。
In short, the Sun's large-scale magnetic field is taken to be self-sustaining, so that the solar-activity cycle it drives would be maintained with little overall change for perhaps billions of years.
简单来说，就是太阳的巨大磁场被用来进行自我维持，所以，由其驱动的太阳活动周期将会在几十亿年的时间里维持整体上维持极小的变动。
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