並前往https://www.carousell.com.hk/p/%E3%80%90%E7%8F%BE%E8%B2%A8%E3%80%91%E6%96%B0%E5%8A%A0%E5%9D%A1%E6%9C%80%E5%BC%B7%E6%95%B8%E5%AD%B8sap-learning-mathematics%E5%B0%8F%E5%AD%B8%E6%95%B8%E5%AD%B8%E7%B7%B4%E7%BF%92%E5%86%8A%E4%B8%80%E5%A5%976%E6%9C%AC-%E5%AE%8C%E7%BE%8E%E7%AD%94%E6%A1%88-%E8%AA%B2%E5%BE%8C%E7%B7%B4%E7%BF%92-%E5%81%87%E6%9C%9F%E7%B7%B4%E7%BF%92-%E7%86%9F%E8%83%BD%E7%94%9F%E5%B7%A7-%E4%B8%8D%E6%95%A3%E8%B3%A3-1029830256/