1. Introduced our campus to visitors 2. Introduced visitors to our campus 分別？

先說說introduce X to Y的修辭結構意義是X必然是主要內容或主人家的角色，而Y是受者/被動/被邀請的角色。所以分析
句1：所要介紹的campus是主體/主角，visitors是客人/來賓/參觀者；句式跟主體/受眾關係合理。
句2：所要介紹的主體是"來賓"，受體是"campus"，讓一樣"死物"認識到來的賓客，這句邏輯上不合理。

真是沒有想像力耶! 神死物不死物的.
很多"死物"的背後,卻有著不童的含義.

例如:

Northern Snake Head was introduced as food to America in 2002.北蛇魚 是在2002"第一次被帶入"美國 當作 食物.
The Ponderosa Pine was introduced to the campus in 1990. 胖大羅莎松 在 1990被帶入校園裡種植.

He introduced our campus to the visitors = 他向訪客介紹校園
He introduced visitors to (the/our) school = 他向校園各位介紹訪客們
He introduced visitors to (the/our) class = 他向班上各位介紹訪客們
He introduced visitors to (the/our) campus = 他向校園中的各位介紹訪客們