ＪＯＫＥＳ

A

Once a keen (熱心的，敏捷的) angler(釣魚者) went fishing andtook his friend with him. The man knew nothing of fishing， but decidedto try his luck(試運氣).

“注：本文中所涉及到的圖表、注解、公式等內容請以PDF格式閱讀原文”。