1. Original: Furthermore, transportation keeps everything going easily. Reviswed: Furthermore, transportation keeps everything running smoothly.
英语中没有 “going easily” 这种说法。这里，作者要表达的意思是“事情进展的比较顺利”，我们可以用 “running smoothly”。看以下两个例子：
* Although the car crashed just last week, the mechanic was able to fix it quickly and now it is running smoothly.
* Although we made some measurement mistakes in our first science experiment, our second one is running smoothly.
2. Original: If it is up to me to decide whether a shopping center should be built near my apartment, I prefer to build it. Revised: If it were up to me to decide whether or not to build a shopping center near my apartment, I would decide to build it.
注意，if引导的条件从句一定要用虚拟语态。例如：
If I were a magician, I would not need to study to get a perfect score on the TOEFL.
虚拟语态表示与事实相反的动作或状态。通常在“if”、“if that”、 “though”、 “lest”、“unless”、 “except”、“until”等等引导的从句中，也要用虚拟语态。
例如： “If there were no honey, the flowers and the bees would have never met.”
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