1. when it comes to (doing) sth 说到（做）某事 / 在（做）某事方面
When it comes to friends, I desire those who will share my happiness.
说到朋友，我渴望那些和我一起分享快乐的人。
When it comes to going abroad, views vary from person to person.
一提到出国，不同的人有不同的看法。
I highly recommend the Great Wall as a must-see attraction when it comes to
visiting Beijing.
提到去北京参观，我强烈推荐的一个必看景点就是长城。
2. it is obvious (that) … 显而易见……
It is obvious that knowledge plays an important role in our life.
显而易见，知识在我们的一生中发挥着重要的作用。
3. be + of + 抽象名词 = be + 抽象名词的形容词
I find going to the English corner can be of great help to us.
我觉得去英语角对我们有很大帮助。
I hope my suggestions will be of benefit to you.
我希望我的建议对你有益。
4. sth is helpful in doing sth 某物对做某事有帮助
Listening to the English programs on the radio is very helpful in improving our
English.
听电台的英语节目对提高我们的英语水平很有帮助。
5. not to mention sth 更不用说某事物了
Pollution does harm to the health of everyone living in the city, not to mention the
damage to the environment.