发简信
IP属地：江西
Come on -Everybody’s doing it. That whispered message, half invitation a...
Listen to part of a lecture in a paleontology class. As we've discussed,...
Listen to a conversation between a student and her biology professor. P:...
Listen to part of a lecture in an art conservation class. M: So far we h...
Listen to part of a lecture in an astronomy class. OK. We've been lookin...
Listen to part of a lecture in a biology class. OK, Just before the end ...
Listen to part of a lecture in an advertising class. Last class someone ...
Listen to a conversation between a student and a university print shop e...
Listen to part of a lecture in a biology class. Now, James, you said you...