Topics: The Roaring Twenties; The Empire State Building; Indians (Asians) versus Indians (indigenous peoples); to blow up versus to explode; staging ground
　　Words:
　　decade
　　booming
　　to be independent
　　roaring
　　invention
　　flapper
　　corset
　　jazz
　　to improvise
　　to become established
　　story
　　observatory
　　Indian (Asian)
　　Indian
　　to blow up
　　to explode
　　staging ground