问题描述：
英语翻译
全句为：Without the importation from China of nautical and navigational improvements such as ships' rudders,the compass and multiple masts,the great European Voyages of Discovery could never have been undertaken.
全句为：Without the importation from China of nautical and navigational improvements such as ships' rudders,the compass and multiple masts,the great European Voyages of Discovery could never have been undertaken.
问题解答：
我来补答展开全文阅读