1to cause one (to do sth)
2to make one (angry, delighted etc)
Examples
yī shēng医生fā xiàn发现le了yì xiē一些lìng rén令人chī jīng吃惊de的shì shí事实。
医生发现了一些令人吃惊的事实。
Doctors have discovered some startling facts.
一场令人难忘的事件发生了。
An unforgettable event occurred.
语言们的死亡令人遗憾而悲伤。
The death of languages leaves people feeling regret and sorrow.