It's a very broad and freeflowing range of topics.
我们学的内容非常广泛和自由。
2
Mind mapping is a freeflowing tool. There are no rights or wrongs to the process.
思维导图是一个使用自由的工具，应用中没什么对或错。
3
The Federal Energy Regulatory Commission ordered the dam removed after concluding that the environmental and economic benefits of a free-flowing river outweighed the electricity generated by the dam.