The rate at which hair grows can be agonizingly slow.

头发生长的速度可以慢得令人苦恼。

I watched the minutes 18 agonizingly tick by on a clock on the wall.

我苦闷地盯着墙上的时钟，指针走了一圈又一圈。

One thing that became agonizingly clear in 2008 is that we all will.

很不幸，2008年的情形清楚地表明，是我们所有人。

Agonizingly, he felt the urgent need to release some intestinal gas.

令人苦恼的是，他急着要排除肠内的空气。

Aircraft production continued to plod along at an agonizingly slow pace.

飞机制造业仍旧举步维艰，发展速度之缓很让人头疼。