Airball means that in basketball, the ball thrown by the shooter does not touch the board, the basket or the net. The English word "Airball" literally means air ball, which means "airball" in basketball.
In contrast, the hollow ball, which is nothing but net in English, means that the ball falls through the basket very simply without touching the basket and backboard. People who often play basketball often make fun of someone who throws airball as "empty outside the basket" (outer space), that is, nothing is touched.
hollow sphere
"Hollow ball" is a colloquial expression, which can often be heard in the mouth of players. Its English name is clean shot, which means that the ball does not touch anything except the basket, including the basket and the backboard, and it is called "the most perfect way to score goals".