= (v) give out or reflect small flashes of light; when sb's eyes glint, they look bright, expressing a strong emotion
(n) a small flash of light, especially as reflected from a shiny surface
* ebb and flow = (Á¶¼öó·³) (Á¤µµ, ¼ö, ¾çÀÇ, ¶Ç´Â ÇÑ »óÅ¿¡¼ ´Ù¸¥ »óÅ·ÎÀÇ ÁÖ±âÀûÀÌ°í ¹Ýº¹ÀûÀÎ) º¯È, º¯µ¿
= something that changes in a regular and repeated way; a frequently changing situation