转瞬即逝 zhuǎn shùn jí shì

DEFINITIONS

  1. momentary; fleeting; passing in the blink of an eye

CHARACTERS

转 zhuǎn shift, move, turn
瞬 shùn wink, blink; in a wink, a flash
即 jí promptly, quickly, immediately
逝 shì pass away; die