recede
verb [ I ] uk/rɪˈsiːd/ us/rɪˈsiːd/
逐渐远离；变得模糊，逐渐淡漠
to move further away into the distance, or to become less clear or less bright
As the boat picked up speed, the coastline receded into the distance until finally it became invisible. 船越开越快，海岸线渐渐远去，直至最后从视线中消失。
The painful memories gradually receded in her mind. 痛苦的记忆逐渐在她脑海中变得淡漠了。