說葡萄酸

sour grapes (set expr. based on Aesop) / lit. to say grapes are sour when you can't eat them

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

Portugal / Portuguese / abbr. for 葡萄牙[Pu2 tao2 ya2]

used in 葡萄[pu2 tao5]

grape

used in 葡萄[pu2 tao5]

sour / tart / sick at heart / grieved / sore / aching / pedantic / impractical / to make sarcastic remarks about sb / an acid

sour grapes (set expr. based on Aesop) / lit. to say grapes are sour when you can't eat them