aging

老化、衰老

Regular exercise can slow the aging of muscles and bones.

规律运动可以减缓肌肉和骨骼的老化。

熟成、陈化

The cheese develops its flavor during two years of aging.

这款乳酪在两年的熟成过程中发展出风味。

年迈的、高龄的

The country must plan for the needs of an aging population.

这个国家必须为高龄人口的需求做规划。

老旧的、陈旧的

The city is spending millions to repair its aging water pipes.

市政府花费数百万元修复老旧的水管。