First, then, how does the car cause air pollution?
首先，轿车如何导致空气污染？
First, setting off firecrackers made a tremendous noise and caused serious air pollution.
首先，放鞭炮制造巨大的噪音，造成了严重的空气污染。
First, more private cars mean more pollution.
首先，私家车越多，就会产生越多的污染。
It also initiated its first-ever air pollution red alert mechanism.
它还启动了首个空气污染红色预警机制。
First of all, the air pollution is the most important problem.
首先，空气污染是最重要的问题。
First, using a bicycle can greatly help reduce the air pollution in many big cities.
首先，在许多大城市，骑自行车能减少空气污染。
The first step to solve air pollution is assessment.
第一步，解决空气污染的评价。
The first one is about pollution, and the second one is about American culture.
第一本是关于污染的，第二本是关于美国文化的。
To solve the problem of compensation of oil pollution damage is our first imperative.
解决油污损害赔偿问题已经成为了当务之急。
To solve the problem of compensation of oil pollution damage is our first imperative.
解决油污损害赔偿问题已经成为了当务之急。
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