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(shí)踐出真知！ 記憶有short-term memory 和long-term memory. 我們要讓英語(yǔ)從表層進(jìn)入深層，記憶從短暫到長(zhǎng)久。 學(xué)科英語(yǔ)---讓你學(xué)到真正的英語(yǔ)?。。。?( 2 sentences)
Remove the CD-ROM from the tray. Remember to hold the CD-ROM by the edges and put it back in its case.