一呼百諾

one command brings a hundred responses (idiom); having hundreds of attendants at one's beck and call

one / single / a (article) / as soon as / entire; whole; all; throughout / "one" radical in Chinese characters (Kangxi radical 1) / also pr. [yao1] for greater clarity when spelling out numbers digit by digit

to call / to cry / to shout / to breath out / to exhale

variant of 呼[hu1] / to shout / to call out

hundred / numerous / all kinds of

to consent / to promise / (literary) yes!