China, long the global economy's most powerful engine, many now fear, is running out of fuel.1)这句话中,long的词性是什么?属于什么用法?2)many of fear 放在这里是什么用法呢?很少见放在这样的位置。
The converged muscle motion profile isan open-loop control generated
through repetition and learning.
请问这个generated through repetition and learning是定语还是状语?