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、短信提醒這里顯示的差別有,意思表達側重不一樣.
另外看以下兩句:
I will be travelling with you.
I will travel with you.
前句比后句, 更突出了進行時, 表示出說話者更肯定的語氣
2.ONCE
conj. as soon as; when:
We didn’t know how we would cope once the money had gone.
The water is fine once you’re in!
3. my pleasure used as a polite way of replying when sb thanks you for doing sth, to show that you were happy to do it
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