I hear and I forget. I see and I remember. I do and I understand. Confucius。 Chinese philosopher & reformer (551 BC - 479 BC) 真是實踐出真知！ 記憶有short-term memory 和long-term memory. 我們要讓英語從表層進入深層，記憶從短暫到長久。 學(xué)科英語---讓你學(xué)到真正的英語！?。?！ ( 7 sentences)
Move the cursor to the white space. Click and hold the mouse. Then drag the mouse to make a picture. I’m going to trace the gray line to finish the picture of a square.