petroski

petroski

美 　英

• 网络佩特罗斯基

例句

According to Henry Petroski, Thoreau discovered how to make a good pencil out of inferior graphite by using clay as the binder;

据亨利·佩特罗斯基所说，梭罗发现了通过把粘土作为粘合剂用劣等石磨来制造一支上好的铅笔。