英和和英

an underlying principle

the principle of the matter

the principle of a thing

a fundamental principle

inviolable principles

underlying principles

the principle of relativity

a principle caled open country principle

the principle of duality

a basic principle

the ultimate principle

an absolute principle

first principles

mysterious principles

as a matter of principle

a cardinal principle

basic principles

apply a principle

a fundamental law

a guiding principle

a fundamental principle [rule]

a radical principle

a governing principle

some king of principle

the embodiment of a principle

an inflexible principle of dogmatism

ultimate truths

the principle of jet propulsion

ultimate principles

ultimate principles