英语语法分析

America's thirtieth president was, in some ways, an unusual kind of person to lead the country.

在某些方面，美国的第三十任总统是个领导这个国家的与众不同的人。

The present crop of books and documentaries about Marilyn Monroe exploit the thirtieth anniversary of her death.

现在这批有关玛丽莲·梦露的书籍和记录片是借她去世三十周年纪念之机而发行的。

《柯林斯英汉双解大词典》

The "Balloon" spaceship uses water to push it through space and costs about one-thirtieth of a normal spaceship.

“气球”宇宙飞船使用水力向太空推进，成本大约是普通宇宙飞船的三十分之一。