They were also having their first periods, on average, three months earlier.
她们的首次例假平均也提前三个月。
You know other companies were having problems with their first releases.
别的公司发布第一款产品显然也会有一些问题。
Younger people can usually speak English, having learned it as their first foreign language.
年轻人通常能说英语，将其作为第一外语学习。
Younger people can usually speak English, having learned it as their first foreign language.
年轻人通常能说英语，将其作为第一外语学习。
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