Visitors are shown an audio-visual presen-tation before touring the cellars.参观酒窖前，游客们先观看了有声的视频介绍。Audio signals can be transmitted along cables without distortion.声音信号可以通过电缆传送而不失真。audio and video cassettes盒式录音带和录像带...
the Emeritus Professor of Biology荣誉退休的生物学教授" Perhaps I can introduce Mr. Lake Kirby , an emeritus professor from Washington University ? "请允许我介绍华盛顿大学名誉教授 莱克柯尔比 先生.I am to disapprove of those who defer emeritus age.我是不赞成推...