These recordings are cheap, available everywhere, and very often much higher in artistic quality than today's live performances; moreover, they can be "consumed" at a time and place of the listener's choosing.
这些录音价格低廉，随处可见，而且艺术质量往往比当今的现场演出更高；此外，听众可以自由选择时间和地点来欣赏它们。
They are often inferior to live concerts in quality.
它们在质量上常常不如现场音乐会。
They help improve the quality of music.
它们有助于提高音乐的质量。
eager to help their friends promote quality products.
急于帮助朋友推广优质产品。
Even though there is plenty of evidence that the quality of the teachers is the most important variable, teachers' unions have fought against getting rid of bad ones and promoting good ones.
尽管有大量证据表明教师素质是最重要的变量，但教师工会却反对淘汰不合格的教师和提升优秀教师。
例句取自历年考研英语真题，翻译为机器生成，仅供学习参考。