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aim to目的在于,旨在,志在
例句：I aim to finish up this job .
我打算结束这项工作。
2.The smoke can lead to lung cancer, heart disease, low birth weight and other problems.
lead to导致, 引起
例句：In given conditions, a bad thing can lead to good results.
在一定条件下, 一件坏事可以导致好的结果。
An ordinary cold can soon lead to a fever.
一场普通的感冒很快便会引起高烧。
3.Secretary Clinton said last week in New York that clean stoves could make as big a difference in the world as bed nets or vaccines.
make a difference有很大关系
例句：Will the rice I donate make a difference?
我捐的大米管用吗？
4.Nearly two million people die from its effects each year, more than twice the number from malaria.
die from死于(某种原因, 不包括疾病、过度悲伤等)
例句：In a severe winter, wild animals can die from lack of food.
在寒冷的冬天, 野兽可能因为缺乏食物而饿死。
5.And because the smoke contains greenhouse gases such as carbon dioxide and methane, as well as black carbon, it contributes to climate change.
contribute to促成
例句：Smoking is a major factor contribute to cancer.
吸烟是致癌的一个重要因素。
