Excuse me, I'm supposed to be having my physics class in the science building, but no one's in the classroom.
打扰一下,我现在应该在科学楼上物理课,但是教室里一个人也没有。
Some people bring along a lot of accessories like extra lenses, but there's really no need for this class.
有些人会带很多配件,比如额外的镜片,但对于这门课来说真的没有必要。
I assume that most students taking the introductory level class would have little or no experience with archeological research, but that's ok.
我想大多数上入门级课程的学生的考古研究经验都是很少或没有的,但没关系。
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