We have no meanings for "understood the principles" in our records yet.
1 Whoever these Indians were they well understood the principles that governed civilized warfare.
2 He had understood the principles then, but he had not realised their truth.
3 He understood the principles of piano construction, and was, therefore, no rule-of-thumb man.
4 He hadn't really understood the principles then, but now it was all coming clear.
5 They understood the principles of aseptic surgery very well.
6 Gordon understood the principles well.
7 He understood the principles , he had seen them driven, he had had their operation explained to him more than once.
8 Here, too, we see how carefully he studied the nude figure, and how well he understood the principles of modelling.
9 Walker understood the principles , but he had never experienced the power of the sword's magic himself, so they were reduced to fencing without weapons.
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