重点讲解：
1. play a role in 作用；地位；角色；
例句：Internet plays a very important role in modern life.
互联网在现代生活中发挥非常重要的作用E.xz78p8eUntf。
2. according to 据…所说；按…所载；
例句：You've been in prison six times according to our records.
根据我们的记录，你曾入狱六次~,1nE(3R=A%EB-。
3. due to 由于；因为；
例句：All planes are grounded due to the bad weather.
由于天气恶劣，所有飞机都停在了机场上e%5@=CaxM.q+0=ZAHY。
4. be expected to do sth. 预期；预料；
例句：Cold temperatures are expected to stay awhile.
寒冷的天气估计还要持续一段时间A^&Si1YuzA8Z。