要說

as for / when it comes to

to demand / to request / to coerce

important / vital / to want / to ask for / will / going to (as future auxiliary) / may / must / (used in a comparison) must be / probably / if

(bound form) to demand; to coerce

to want; to need; to ask for / will; shall; about to / need to; should / if (same as 要是[yao4 shi5]) / (bound form) important

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