並前往https://books.google.com.tw/books?id=GZpEDwAAQBAJ&pg=PA5&lpg=PA5&dq=sym%E5%AE%A2%E6%9C%8D%E9%9B%BB%E8%A9%B1&source=bl&ots=y0UQvlc7rl&sig=ACfU3U3wZLALh0zKjFm2okLe5pJfGmJB3g&hl=zh-TW&sa=X&ved=2ahUKEwimn6S6roT_AhUEe94KHR9tACEQ6AF6BAgkEAM