烜赫一時

to enjoy a short-lived fame or position of power

brilliant

famous / prestigious

surname He

awe-inspiring / abbr. for 赫茲|赫兹[he4 zi1], hertz (Hz)

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

a period of time / a while / for a short while / temporary / momentary / at the same time

o'clock / time / when / hour / season / period