plural flybys
plural flybys
Learner's definition of FLYBY
[count]
1
US : a usually low flight past a group of people at an air show, during a parade, etc., by an aircraft or group of aircraft(飞行表演中的)低空飞行 — called also flyover, (British) fly-past
2
: a flight of a spacecraft past a planet, moon, etc.近天体飞行