adjective, modal particle · plain, distinct, and easy to understand

这篇报告的逻辑十分明了。

verb · to understand clearly or be fully aware of something

听了他的解释，我才明了其中的原委。

verb · to understand clearly or be clear about something

我非常明了目前的形势。

modal particle · plain, simple, and easy to understand

这篇文章写得简单明了，容易读懂。