例句與造句

1. Although Huygens'estimate is remarkably close to modern values, it is often discounted by historians of astronomy because of the many unproven ( and incorrect ) assumptions he had to make for his method to work; the accuracy of his value seems to be based more on luck than good measurement, with his various errors cancelling each other out.
2. It's difficult to find error cancelling in a sentence. 用error cancelling造句挺難的