Complex sentence: Tropical Storm Kim was the only storm of 1983 to move from the Western Pacific basin into the North Indian Ocean basin as it moved across southern Indochina and into the Bay of Bengal as a tropical depression.
Split into simpler sentences: Tropical Storm Kim was the only storm of 1983 to move from the Western Pacific basin into the North Indian Ocean basin. Kim moved across southern Indochina and into the Bay of Bengal as a tropical depression.