LESSON 62 FRANK AND THE HOURGLASS 弗兰克和时漏 line figure second perfectly grain verse advice impatient study busily followed understand Frank was a very talkative li...
CONTENTS LESSON 1 PERSEVERANCE 坚持不懈 LESSON 2 TRY, TRY AGAIN 试一次,再试一次 LESSON 3 WHY THE SEA IS SALT 海水为什么是咸的 LESSON 4 WHY THE SEA IS SALT 海水为什么是咸的(结束篇) LESSON 5 POPPING CORN...