重点讲解：
1. 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0-6*U2Q.KD*|)np*M5-。
2. be accused of 指控；控告；
He was accused of bribing a senior bank official.
他被指控贿赂一名高级银行官员LaA*kSV,SB%。
3. urge sb. to do sth. 敦促；力劝；
They urged parliament to approve plans for their reform programme.
他们敦促议会批准他们的改革方案qZw8zGpt_I2C。
4. be due to 由于；因为；
In part this attitude was due to fear of trade union and employee reactions.
在某种程度上，这一态度是由于害怕工会和雇员的反应^6YELXi7pir^v]z-BnRi。