Save (one's) breath
Translation of "save (one's) breath" into Russian
save (one's) breath
не тратить слова зря
He realized they wouldn’t listen, so he decided to save his breath.
Он понял, что они не будут слушать, поэтому решил не тратить слова зря.
Definitions
To refrain from saying something because it would be pointless or ignored; to not bother speaking, as it will not make a difference.