14. Can you give me an instruction about this job?
关于这个工作你能给些指导吗？
还能这样说：
Can you give me some advice on the job?
Can you instruct me on the job?
应用解析：
ask for instruction 请示；
give instruction in 讲授

15. Do you know what I mean?
您明白我的意思吗？
还能这样说：
Do you know what I am talking about?
Are you clear about what I have said?

16. Please let me know if you have any problem doing this.
如果工作上有什么困难一定要记得跟我说哦。
还能这样说：
Please tell me if you have difficulty in doing this.
When going under this, remember to tell me.

17. Believe it or not, an exchange of opinions is helpful.
信不信由你，相互交换意见是有益的。
还能这样说：
Believe it or not, you can get help from the exchange of opinion.
Believe it or not, you will benefit from exchanging opinios.
谚语：
The pen is mightier than the sword.
笔利于剑。

18. Thank you for your speaking so.
谢谢你能这么说。
还能这样说：
I appreciate your speaking so.
I am full gratitude for your speaking so.
应用解析：
speak out 毫不犹豫地说出，畅所欲言；
speak up 大声说，毫不犹豫地说；
be on speaking terms with sb. 与某人熟识到可交谈的地步