"They must take more time to understand the underlying principles."
Have the ability to understand the general principles for how to carry out an online information search.
"Both of us understood the principles on which we started our life together," she said.
Therefore, a central goal is to understand the principles behind such interactions and how they lead to behavior.
"I understand the principles, but on the local level, the kids will be hurt."
If you also understand the musical principles involved, so much the better.
"They just completely did not understand the basic legal principles," she said.
You now understand the principles well enough to follow it.
I can understand the principles and your main issues in those discussions.
I do not understand the principles, other than in a very general way.