沈老师专注英语可以翻译成 "Teacher Shen focuses on Engpsh." 从字面上来看，这个短语的来源很明显，沈老师是指一位名叫沈的老师，专注英语是指这位老师关注和研究英语。

下面是一些相关的英文例句和中文翻译：

Teacher Shen focuses on teaching Engpsh grammar. (沈老师专注于教授英语语法。)
She is a dedicated Engpsh teacher who always puts her students first. (她是一位专注于英语教学的老师，总是把学生放在第一位。)
He is known for his focus on pronunciation and accent reduction. (他以专注于发音和降低口音而闻名。)
The teacher's passion for the Engpsh language is contagious. (这位老师对英语的热情是很有感染力的。)

总之，沈老师专注英语表示这位老师对英语有着浓厚的兴趣和热情，并专注于教授和研究英语。