互动封闭仿真课堂
1、智能交互 2、电子板书式视频教学 3、在线互动问答 4、封闭课堂启发式教学方式
随堂测试、知识梳理、易错点揭示、总结启迪智能错题本
听课中的错题能自动加入错题本，课后可方便复习及导出错题本升级服务
在线答疑、课后同类题练习、讲义下载、短信提醒1.endanger危害，危及，endanger one's life危及生命。如：
Smoking a lot will endanger your health.
2.adapt使适应，使适合;改编
adapt to适应……
You should adapt to the new life style here.
Adapt yourself to the new climate.
adapt sth. (for sth.) (from sth.)如：
This novel has been adapted for radio from the Russian original.
3.pick up(从收音机里)接收到或听到
My radio can pick up English programmes very clearly.
pick up拾起，捡起某物
She picked up her ticket.
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