■ contribute 与 contribution

无论是动词或名词，意义都不一定限于正面的“贡献”，也可以表示负面的“助长作用”。

• air travel's contribution to global warming航空交通对全球变暖起的影响
• Soaring land prices contribute to the high cost of housing.地价飞涨，使得建房成本很高。
• His carelessness contributed to the accident.他的粗心大意，也是造成事故的一个原因。
• Smoking is a major factor contributing to lung cancer.吸烟是引起肺癌的一个主要因素。

• come and inf.
• come to
• come to inf.
• come 与 go
• comic
• comical
• comic 与 comical
• coming through
• coming through, please
• coming through. 或 coming through, please.
• command
• commit
• commitment
• common
• common knowledge
• common sense
• common sense 与 common knowledge
• communication
• community
• company
• compare
• compared
• competition
• competitive
• compile