问题描述：
英语达人进~分析句子成分
eg.（Starting as a street vendor）,he is now general manager of atrading corporation in Yichang.
eg.（Arriving at the station）,we learned that the train had already gone.
分析这两个句子括号中的部分，说明作什么成分为什么是？
eg.（Starting as a street vendor）,he is now general manager of atrading corporation in Yichang.
eg.（Arriving at the station）,we learned that the train had already gone.
分析这两个句子括号中的部分，说明作什么成分为什么是？
问题解答：
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