1 (wiktionary) 2 (vi.wikipedia) 3 (en.wikipedia) 4 (glosbe)

Core Words Familarize yourself with the 'core words'.
Compounds Expand your vocabulary by studying more complex words built by the 'core words'.
Wordsense Learn about the wordsenses of the english term.

ETYMOLOGY

KOREAN 3.0 Eng Wordtype Etym. Gb Vie
☆ HURRIEDLY; IN A RUSH; HASTILY; FLUSTEREDLY Adverb 慌慌张张地，跌跌撞撞地，手忙脚乱地 một cách cuống cuồng, một cách bấn loạn