advantageous theory of country competition的用法和样例：
- Einstein put forward his new theory of relativity.
- We make an analysis on the three ways that may connect the justice of country and sole, agree and try hard to provide a rational explanation from "the theory of the type" on metaphysics foundation, and narrate the reason that ties two aspects.
- Einstein's theory of relativity.
- Do you agree to the wave theory of light?
- He cavalierly dismisses the theory of both Freud and Jung.