"Sun Laoshi's English reading class" or "Sun teacher's English reading lesson" are both ways to describe a class or lesson in English reading taught by someone named Sun Laoshi. In Chinese, "Laoshi" is a title that means "teacher," and it is commonly used to address or refer to teachers in a formal or respectful way. If you are talking about the class or lesson in English, you could simply say "Sun's English reading class" or "Sun's English reading lesson."
