开朗

spacious and well-lit / open and clear / (of character) optimistic / cheerful / carefree

to open / to start / to turn on / to boil / to write out (a prescription, check, invoice etc) / to operate (a vehicle) / carat (gold) / abbr. for Kelvin, 開爾文|开尔文[Kai1 er3 wen2] / abbr. for 開本|开本[kai1 ben3], book format

clear / bright

Michelangelo Buonarroti (1475-1564), Renaissance painter and sculptor

suddenly opens up to a wide panorama (idiom); to come to a wide clearing / fig. everything becomes clear at once / to achieve speedy enlightenment