原句：Yesterday is gone, and tomorrow is out of reach.
昨天已经过去了，明天还未到来。

Theseparationisoutofourreach中文意思

The separation is out of our reach.

那分离/离异是我们所能控制的范围之外的.

out of reach: 力所不及的, 够不着的

Lemons have a warm yellow color, but they know it's cold inside.

柠檬虽然有暖和的黄色但它们知道其心是冷的.

(此句作比喻时, 可解作”对人欢笑背人愁”)

看不到是out of sight 够不到是out of reach 那听不到呢

out of reach就可以表示听不到啦 实在要用就out of hearing吧