一日千里

lit. one day, a thousand miles (idiom); rapid progress

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

abbr. for 日本[Ri4 ben3], Japan

sun / day / date, day of the month

thousand

see 鞦韆|秋千[qiu1 qian1]

a thousand miles / a thousand li (i.e. 500 kilometers) / a long distance

variant of 裡|里[li3]

lining / interior / inside / internal / also written 裏|里[li3]

li, ancient measure of length, approx. 500 m / neighborhood / ancient administrative unit of 25 families / (Tw) borough, administrative unit between the township 鎮|镇[zhen4] and neighborhood 鄰|邻[lin2] levels