Mr./Ms. Li is taking a new student on a tour of our(the) campus/school.
Mr./Ms. Li is taking a new student around and show him/her the(our) school.
更正式：Mr./Ms. Li is giving a new student a tour around our(the) campus/school.
李老师正带领一名新生参观我校.翻译
Mr./Ms. Li is taking a new student on a tour of our(the) campus/school.
Mr./Ms. Li is taking a new student around and show him/her the(our) school.
更正式：Mr./Ms. Li is giving a new student a tour around our(the) campus/school.