The school offers two modules in Teaching English as a Foreign Language, viz. Principles and Methods of Language Teaching and Applied Linguistics.
该校提供两个模块用于英语作为外语的教学，即语言教学的原理方法和应用语言学。
《柯林斯英汉双解大词典》
2
It also includes descriptions of representations, viz., the XML documents in this example.
它还包含了表示的描述，即示例中的XML文档。
3
The ratio in which this light decreases, is precisely the same as that of the terrestrial light illustrated above, viz., according to the square of the distance.