Weclcome to XXX(公司名)
Professor XXX(全名) and friends.
我去看厂时，人家一般是这么写的，不会写上指导等的这些英文。
Welcome to our company, dear professor and friends!
** Welcomed the guidance of professor and his entourage visited in English how that
欢迎**教授一行参观指导
Welcome ** Professor and Accompanying Personnel Visit and Guide
Welcome ** professor and the party of visits to instruct
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