摘要:
The dean can’t see you at the moment. He is addressing the first-year students in the lecture hall.系主任现在不能见你。他正在演讲厅向一年级的学生讲话。 He does nothing that vio 阅读全文
摘要:
Astronomers have revealed details of mysterious signals emanating from a distant galaxy, picked up by a telescope in Canada.The precise nature and ori 阅读全文