luxuriating

As the day came to a close, I would stand upright and slowly let my head fall back, luxuriating in the feeling tightness relieved.

当一天快要结束时，我都会站直，然后让脑袋慢慢向后仰，沉浸在紧张得以纾缓的快感之中。

Four years ago they were luxuriating in the lowest interest rates for almost half a century.

四年前，借户们沉迷于几乎半个世纪以来的最低利率。