四一二惨案

the massacre of 12th Mar 1927 / the Shanghai coup of 12th Mar 1927 by Chiang Kai-shek against the communists

four / 4

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

12th April / refers to Chiang Kai-shek's coup of 12th April 1927 against the communists in Shanghai

one or two; a few / a little; just a bit

two / 2 / (Beijing dialect) stupid

miserable / wretched / cruel / inhuman / disastrous / tragic / dim / gloomy

massacre / tragedy / CL:起[qi3]

(legal) case / incident / record / file / table