大事 dàshì HSK5 major event Definitions Defs Origin Strokes Stroke Words Sentences Sents Showing: extensively All meanings 19 dàshì 19 major event 13milestone 5extensively 1 1 sentence for 大事 (dàshì — extensively) 媒体对这次科研突破进行了大事宣传。 méitǐ duì zhè cì kēyán tūpò jìnxíng le dàshì xuānchuán. The media gave massive publicity to this scientific breakthrough. Source: Dong Chinese Dictionary