The first time I taught this class, it was a few years ago, was just before they built the Stata Center.
第一次我教这个课的时候，也就是几年前的时候，正是他们在设计建造Stata, Center的时候。
The first time I taught this class, it was a few years ago, was just before they built the Stata Center.
第一次我教这个课的时候，也就是几年前的时候，正是他们在设计建造Stata, Center的时候。
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