Sailboards
(sailboard 的复数) v. 驾账板冲浪\\nn. 帆板
🗣️ 情景例句
He is working on a book about the Vietnam War.
他正在写一本关于越战的书。
What do you mean by that?
你这话是什么意思？
Libraries made education possible, and education in its turn added to libraries: the growth of knowledge followed a kind of compound interest law, which was greatly enhanced by the invention of printing.
藏书使教育成为可能，而教育反过来又丰富了藏书，因为知识的增长遵循着一种“滚雪球”的规律。印刷术的发明又大大提高了知识增长的速度。