1 used to emphasize how easy or basic sth is （用于强调容易或基本）: Simply add hot water and stir. 只要加点热水一搅就成了。

2 (used to emphasize an adjective) completely; absolutely （用于强调形容词）完全，绝对，简直: That meal was simply excellent. 那顿饭简直棒透了。

3 in a way that makes sth easy to understand 简单地；简明地；浅白地: Could you explain it more simply? 你解释得浅白一点好吗？

4 in a simple, basic way; without decoration or unnecessary extra things 简朴地: They live simply, with very few luxuries. 他们生活简朴，没有多少奢侈品。

5 only; just 只是；仅仅: There's no need to get angry. The whole problem is simply a misunderstanding. 不用生气，整件事只不过是个误会。