空口說白話

to make empty promises

empty / air / sky / in vain

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

incomplete meal of a single dish / meat or vegetable dish without rice or wine / rice without meat or vegetables

mouth / classifier for things with mouths (people, domestic animals, cannons, wells etc) / classifier for bites or mouthfuls

to persuade

to speak / to say / to explain / to scold / to tell off / a theory (typically the last character in a compound, as in 日心說|日心说 heliocentric theory)

to speak; to talk; to say / to explain; to comment / to scold; to tell off / (bound form) theory; doctrine

white / snowy / pure / bright / empty / blank / plain / clear / to make clear / in vain / gratuitous / free of charge / reactionary / anti-communist / funeral / to stare coldly / to write wrong character / to state / to explain / vernacular / spoken lines in opera

spoken language / vernacular

dialect / language / spoken words / speech / talk / words / conversation / what sb said / CL:種|种[zhong3],席[xi2],句[ju4],口[kou3],番[fan1]