[yuán lǐ]
principle; tenet; axiom; theory
									
										a cardinal principle
										根本的原理
									
									
									
										fundamentals of mathematics
										数学的基本原理
									
									
									
										develop the theory of ...
										详述 ... 的原理
									
									
									
										apply the principles of science for the good of mankind
										运用科学原理造福人类
									
									
									
										These machines work on the same principle.
										这些机器按照相同的原理运转。