space-time curvature的用法和樣例：
例句
- The curvature of spacetime keeps the earth in its orbit around the sun and drives distant galaxies ever farther apart.
時(shí)空曲率使地球得以保持在繞日軌道中，也驅使遙遠的星系彼此更加分離。 - The extra dimensions introduce a correction term into the equations, which ensures that the curvature of an empty brane is not zero.
額外維度在方程式中引進(jìn)了一個(gè)修正項，該修正項確保了一個(gè)即便是空的膜其時(shí)空曲率亦不為零。
