一聲令下

The number one; single; a; as soon as; entire; whole; all; a "one" radical in Chinese characters; also used for clarity when spelling out numbers.

Sound; voice; noise; tone; music; speech; reputation; news; classifier for sounds or utterances.

To order or command; an order or decree; to cause or make happen; a government official or position; a season; a short poem or song.

Down; below; under; to go down; to descend; to fall; to arrive; next; later; measure word for actions.