Question

求英文翻译一句 “我们老师讲课的时候，经常围绕这一句话，给我们扩展很多新的知识。”

Answer 1

During the class,our teacher used to expanding/introuducing lots of new knowledge surrounding this sentence
注：1.used to doing sth是指习惯于干某事，常常怎么样；
2.要是前后文中提到一句话的话用this或者the sentence，如果没有特别说明那句话最好将this换成 a，表示泛指
3.个人觉得用introuduce更好一点，因为老师讲课更多的就是引入知识，用expand的话感觉太生硬了，还有如果这位老师可以直接说出名字的话，可以直接把our teacher换成Mr./Miss./Mrs./Dr.+姓，会比较亲切.
再就是可以说的简单点：
While having classes,our teacher often introuduces some new information surrounding a sentence.

追问

（be） used to doing sth 是指习惯于干某事，常常怎么样；
不过你的翻译非常好谢了啊

Answer 2

When our teacher lectures, he/she always surrounds this topic and expands to much more new knowledge.

Answer 3

When our teacher was giving a lesson, he often taught us a lot of new knowledge based on on one sentence.

Answer 4

Our teacher will expand some new information of this sentence to us by talking about the related things when we are having classes.

Answer 5

When our teacher, often around a word, we extend a lot of new knowledge.