하루살이

mayfly; dayfly; An insect, flying around in swarms in the evening in summer, which lives only a few hours or up to a few days.

여름철 저녁에 떼를 지어 날아다니며 몇 시간에서 며칠 정도로 짧게 사는 벌레.

living hand to mouth; earning a scanty living; making ends meet; The act of barely managing to support oneself or earn a living; or a person living in such a situation.

하루하루를 어렵게 겨우 살아가는 사람. 또는 그런 생활.

ephemeral; dayfly; (figurative) An extremely short-lived creature, life, regime, etc.

(비유적으로) 아주 짧은 기간 동안 이어진 생활이나 목숨, 정권 등.