互動封閉仿真課堂
1、智能交互 2、電子板書式視頻教學 3、在線互動問答 4、封閉課堂啟發(fā)式教學方式
隨堂測試、知識梳理、易錯點揭示、總結啟迪智能錯題本
聽課中的錯題能自動加入錯題本，課后可方便復習及導出錯題本升級服務
在線答疑、課后同類題練習、講義下載、短信提醒But the phrases they use may be difficult for foreigners to understand.不過外國人是不容易理解其中含義的。
“Weather’s taken a turn for the worse” means that the weather has changed from good to not so good.“天氣轉壞”說的是天氣從好向不好轉變。
“It’s raining cats and dogs” is a strange expression that means it is raining very heavily.“雨像貓狗一樣往下竄”是一個很奇怪的表達方式，說的是雨下得很大。
“A peasouper” is very thick fog; it is used because pea soup is also very thick.“豆湯”指的是很濃的霧，之所以這么用是因為豆制的湯也很濃。
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