hourglass

n.

沙漏；

复数：hourglasses

1. 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。
2. 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。

Hourglass-shaped knife for electrosurgical forceps
Stacked Hourglass Networks for Human Pose Estimation
Stacked Hourglass Networks for Human Pose Estimation
Stacked Hourglass Networks for Human Pose Estimation
HOURGLASS-SHAPED CONDUCTIVE CONNECTION THROUGH SEMICONDUCTOR STRUCTURES
Hourglass: An infrastructure for connecting sensor networks and applications
Oocyte apoptosis: like sand through an hourglass
EEG power density during nap sleep: reflection of an hourglass measuring the duration of prior wakefulness
Entrapment of the long head of the biceps tendon: the hourglass biceps—a cause of pain and locking of the shoulder
Dijk DJ, Beersma DGM, Daan S. EEG power density during nap sleep: reflection of an hourglass measuring the duration of prior wakeful...