| 例句 |
Her new book expands upon the theory propounded in her first book.她的新书详述了她第一本书中提出的理论。It was Ptolemy who propounded the theory that the earth was at the centre of the universe.是托勒密提出了地球位于宇宙中心的理论。Zoologist Eugene Morton has propounded a general theory of the vocal sounds that animals make.动物学家尤金·莫顿提出了一个有关动物发声的概括性理论。The theory of natural selection was first propounded by Charles Darwin.物竞天择的理论最初是由查尔斯·达尔文提出的。 |