causern.引起者；引起因素causevt.引起；使发生n.原因；理由；事业cause of hazard病害原因cause bad blood产生恶感cause for death死因cause of bubble双流液洞池炉cause mechanism成因机理cause of change变动原因causes of irony反讽成因causes of death死因causes of crime犯罪原因cause of corrode腐蚀原因

1. We cannot assign a cause to these events.
   我们无法说明发生这些事件的原因。
2. They are probing into the cause of the crime.
   他们正在探究犯罪的原因。
3. She wrote to enquire the cause of the delay.
   她只得写信去询问拖延的理由。
4. He had a legitimate reason for being late.
   他迟到有合理的理由。