例句與造句

1. It was proposed by Robert Pound and his graduate student classical tests of general relativity to be verified ( in the same year ).
2. In 1957, he first proposed an alternative theory of gravitation inspired by Mach's principle and Paul Dirac's Mercury's orbit, one of the classical tests of general relativity.
3. It's difficult to find classical tests of general relativity in a sentence. 用classical tests of general relativity造句挺難的