n.时漏；砂漏；水漏
Love is like an hourglass, with the heart filling up as the brain empties. 爱情就象一个砂漏,当脑子倒空的时候心就被填满了。
Once the sands have run out of a person's hourglass, they can not be replaced. 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。
