空载

(of a ship, train etc) not carrying any load (i.e. no passengers or freight etc) / (electricity) no-load (used to describe the condition of a transformer when there is no load connected to its secondary coil)

empty / air / sky / in vain

to empty / vacant / unoccupied / space / leisure / free time

to record in writing / to carry (i.e. publish in a newspaper etc) / Taiwan pr. [zai4] / year

to carry / to convey / to load / to hold / to fill up / and / also / as well as / simultaneously