A fourth-generation multi-purpose fighter in the skyA fourth-generation multi-purpose fighter in the sky
The most common fighter of the fourth generation f16The most common fighter of the fourth generation f16
American all-weather fighter of the fourth generation f-15American all-weather fighter of the fourth generation f-15
Samsung galaxy s4 is a fourth-generation smartphone of the galaxy s lineSamsung Galaxy S4 is a fourth-generation smartphone of the Galaxy S line