回空

Traditional form:

回空

Pinyin (reading):

huíkōng

Definitions:

• to return empty (i.e. to drive back with no passengers or freight)

Characters:

• 回 - to return, to turn around; a time
• 空 - hollow, empty, deserted, bare

Traditional characters:

• 回 - to return, to turn around; a time
• 空 - hollow, empty, deserted, bare