«At the end of the day, they're learning the same words, but just with different levels of complexity and nuance,» she said. (nytimes.com)
All these different fully functional stages at different levels of complexity are found in living animals today. (religion.blogs.cnn.com)
Like anything else in life, they come in different levels of complexities that may require anything from a simple tweak to a comprehensive assessment and intervention by a team of specialists. (parents.com)