In fact, it forms a very effective base which easy-to-use systems can be built upon by following a few simple principles.
事实上,它形成了一个非常有效的基础,通过遵循几个简单原则就可以在其上构建易于使用的系统。
the use of familiar or easy-to-learn songs is a great way tointroduce principles of speaking, hearing and understanding the Englishlanguage.
播放熟悉的或者易学的歌曲是介绍听、说和理解英语的原理的好方法。
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