一锤定音 One blow of the hammer fixes the tone. Originally the last blow that set the sound of a gong. Today, a single word that settles a matter.
令行禁止 Orders are carried out at once, and bans are obeyed at once.
雷厉风行 Like thunder and wind. Forceful and fast. In 2024, People’s Daily called it the spirit that leading officials should keep when they put work into practice.