落空

to omit; to neglect (to do sth) / to miss a chance; to let an opportunity slip by

to fail to achieve something / to be fruitless

to fail / to fall through / to come to nothing

to fail to achieve something; to be fruitless

to fail; to fall through; to come to nothing

to leave out / to be missing / to leave behind or forget to bring / to lag or fall behind

colloquial reading for 落[luo4] in certain compounds

to fall or drop / (of the sun) to set / (of a tide) to go out / to lower / to decline or sink / to lag or fall behind / to fall onto / to rest with / to get or receive / to write down / whereabouts / settlement

empty / air / sky / in vain

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

hopes are dashed