一落千丈

lit. to drop a thousand zhang in one fall (idiom) / fig. (of business, popularity etc) to suffer a sudden, devastating decline / to take a dive

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 leave out / to be missing / to leave behind or forget to bring / to lag or fall behind

colloquial reading for 落[luo4] in certain compounds

to fall or drop / (of the sun) to set / (of a tide) to go out / to lower / to decline or sink / to lag or fall behind / to fall onto / to rest with / to get or receive / to write down / whereabouts / settlement

thousand

see 鞦韆|秋千[qiu1 qian1]

measure of length, ten Chinese feet (3.3 m) / to measure / husband / polite appellation for an older male