speak one's piece
Also, say one's piece. Say what one thinks, or what one usually says or is expected to say. For example, All right, you've spoken your piece; now let someone else have a turn. The piece in this expression alludes to a memorized poem or speech of the kind recited in a classroom. [Mid-1900s]
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How to use speak one's piece in a sentence
Added to drinking water at concentrations of around one part per million, fluoride ions stick to dental plaque.
In his view, a writer has only one duty: to be present in his books.
Yet this, in the end, is a book from which one emerges sad, gloomy, disenchanted, at least if we agree to take it seriously.
The fear of violence should not determine what one does or does not say.
The al Qaeda-linked gunmen shot back, but only managed to injure one officer before they were taken out.
Practise gliding in the form of inflection, or slide, from one extreme of pitch to another.Expressive Voice Culture|Jessie Eldridge Southwick
He alludes to it as one of their evil customs and used by them to produce insensibility.
There was a rumor that Alessandro and his father had both died; but no one knew anything certainly.Ramona|Helen Hunt Jackson
“Perhaps you do not speak my language,” she said in Urdu, the tongue most frequently heard in Upper India.The Red Year|Louis Tracy
Truth is a torch, but one of enormous size; so that we slink past it in rather a blinking fashion for fear it should burn us.Pearls of Thought|Maturin M. Ballou