Complex sentence: The COMAC (formerly ACAC) ARJ21 Xiangfeng (Chinese 翔凤 xiángfèng, "Soaring Phoenix") is a twin-engined regional airliner, and is the first passenger jet to be developed and indigenously produced by the People's Republic of China.
Split into simpler sentences: The Comac (formerly ACAC) ARJ21 Xiangfeng (Chinese 翔凤 xiángfèng, "Soaring Phoenix") is a twin-engined regional airliner. It is the first passenger jet to be developed and indigenously produced by the People's Republic of China.