[再问一个关于 Anaconda 和 Pycharm 的小白问题] Pycharm 解释器配置中 virtualenv 和 conda env 的区别

想再请教一个关于 Pycharm 下配置 Anaconda 的问题，晚上大部分的教程都是解释在 interpreter 中选择 virtualenv，然后在 virtualenv 里面在选择 anaconda 的 python 路径，但是 pycharm 里面还有一个 Conda env，里面也可以配置，这两个环境有什么区别。
看了 stackflow 的 https://stackoverflow.com/questions/51978816/what-is-the-difference-between-pycharm-virtual-environment-and-anaconda-environm

里面总结到：
To sum up:

Conda Environment:

- Manage not only Python packages but also different Python versions and system-wide dependencies.
- Envs are located in user-wide directories.
- Less envs.
Virtualenv Environment:

- Manage Python packages. Main purpose is to segement dependencies for every applications.
- Envs are usually located in project-wide directories.(Although pipenv creates env in user-wide directories by
default, many people think in project directories should be the default.)
- Much more envs.(A new env for every application)

不吹牛的说- -#，这里每个字我都认识。。。但是还是不太懂他们的区别，什么是 system-wide dependencies 和 applications-wide dependencies?