6.For example, … （举例阐述）For instance, …Let’s take …for example.就拿汽车为例。汽车不仅污染城市空气，而且使城市拥挤不堪。此外，汽车造成许多交通事故。汽车所产生的噪音使居住在街道两旁的居民日夜不得安宁。Les’s take cars for example. They not only pollute the air in cities, but make them crowed.Furthermore, they cause a lot of traffic accidents. (…, they are responsible for a lot of traffic accidents.) The noise made by cars disturbs the residents living on both sides of streets all day and night.
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