落空

Verb

 * 1) to fail to achieve something; to come to nothing; to fall through
 * 2)  to find time ; to take time

Verb

 * 1)  to not have passengers nor cargo on the return trip
 * 2)  to have nobody to look after
 * 3)  to be the bye (the position of a person or team in a tournament or competition who draws no opponent in a particular round so advances to the next round unopposed, or is awarded points for a win in a league table)