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重点讲解：
1. under control 得到控制；
Firemen said they had the blaze under control.
消防队员说他们已经控制住了火势。
2. fail to do sth. 失败；未能（做到）；
He failed to keep the appointment.
他未履约。
3. according to 据（…所说）；按（…所报道）；
According to the survey, overall world trade has also slackened.
根据这项调查，世界贸易整体上也有所放慢。
4. call on sb. to do sth. 要求；呼吁；号召；
I call on everyone to renounce the use of violence and armed struggle.
我呼吁每个人都放弃使用暴力和武装斗争。
vt. 断言，宣称
