並前往https://github.com/boydfd/books/blob/master/seeing/underway/%E6%90%9C%E7%B4%A2%E5%BC%95%E6%93%8E%E2%80%94%E2%80%94%E5%8E%9F%E7%90%86%E6%8A%80%E6%9C%AF%E4%B8%8E%E7%B3%BB%E7%BB%9F.pdf