說是一回事，做又是另外一回事

Saying is one thing, doing quite another (idiom)

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

variant of 是[shi4] / (used in given names)

to be (followed by substantives only) / correct; right; true / (respectful acknowledgement of a command) very well / (adverb for emphatic assertion)

one / single / a (article) / as soon as / entire; whole; all; throughout / "one" radical in Chinese characters (Kangxi radical 1) / also pr. [yao1] for greater clarity when spelling out numbers digit by digit

one and the same (thing) / one thing (as distinct from another)

to circle / to go back / to turn around / to answer / to return / to revolve / Hui ethnic group (Chinese Muslims) / time / classifier for acts of a play / section or chapter (of a classic book)

to curve / to return / to revolve

variant of 迴|回[hui2]

(old) to report to one's master

matter / thing / item / work / affair / CL:件[jian4],樁|桩[zhuang1],回[hui2]

to make; to produce / to write; to compose / to do; to engage in; to hold (a party etc) / (of a person) to be (an intermediary, a good student etc); to become (husband and wife, friends etc) / (of a thing) to serve as; to be used for / to assume (an air or manner)

(once) again / also / both... and... / and yet / (used for emphasis) anyway

other / another / separate / separately

additional / in addition / besides / separate / other / moreover / furthermore

outside / in addition / foreign / external