cause  
 noun uk/kɔːz/ us/kɑːz/
  (REASON)         
 B2 [ C or U ](尤指不好的事情发生的)原因,起因 
the reason why something, especially something bad, happens
  The police are still trying to establish the cause of the fire. 警方仍在努力查证失火的原因。 
 She had died of natural causes. 她是自然死亡。 
 I wouldn't tell you without (good) cause (= if there was not a (good) reason). 没有(正当的)理由,我是不会告诉你的。 
 I believe we have/there is just cause (= a fair reason) for taking this action. 我认为我们采取这样的行动有正当的理由。 
 C2 [ U ]理由;根据;缘故 
a reason to feel something or to behave in a particular way
  He's never given me any cause for concern. 他从未让我担心过。 
 - More examples
 - One common cause of homelessness is separation or divorce.
 - They are demanding an inquiry into the cause of the accident.
 - I don't really think he had any cause to complain.
 - Sugar is a major cause of tooth decay.
 - Forensic scientists are examining the wreckage for clues about the cause of the explosion.
 
  (PRINCIPLE)      
C1 [ C ](为某些人所强烈支持的)原则,事业,目标 
a socially valuable principle that is strongly supported by some people
  They are fighting for a cause - the liberation of their people. 他们正为解放人民这一事业而战斗。 
 I'll sponsor you for £10 - it's all in a good cause. 我资助你10英镑——这都是为了做正经事嘛。 
 - More examples
 - Her study has considerably advanced the cause of equal rights.
 - Environment protesters have made common cause with local people to stop the motorway being built.
 - He has always shown great dedication to the cause.
 - Vegetarianism is one cause she does not espouse.
 - He has probably done more to further the cause of interracial harmony than any other person.
 
cause       
verb [ T ] uk/kɔːz/ us/kɑːz/
B2 使(不好的事情)发生;造成,导致
to make something happen, especially something bad
  The difficult driving conditions caused several accidents. 艰难的驾驶条件引发了好几起事故。 
 [ + obj + to infinitive ] The bright light caused her to blink. 明亮的光线刺得她直眨眼睛。 
 Most heart attacks are caused by blood clots. 大多数心脏病发作都是由于血液凝块所致。 
 [ + two objects ] I hope the children haven't caused you too much trouble. 我希望孩子们没给你添太多麻烦。 
 Synonyms: bringinflictvisit something on/upon someone wreak 
 - More examples
 - Sitting hunched over a computer all day can cause problems.
 - Some types of paint on toys can cause lead-poisoning in children.
 - The bomb was designed to cause the maximum amount of damage.
 - He's always trying to cause trouble between us.
 - Smoking can cause respiratory diseases.