一个人的沙漏计时器中的沙子一旦流走了，那是无法弥补的。

Once the sands have run out of a person's hourglass, they con not be replaced.

youdao

一个人的沙漏计时器中的沙子一旦流走了，那是无法弥补的。

Once the sands have run out of a person's hourglass, they con not be replaced.

youdao