never mind,别担心,就是比如人家讲sorry你就never mind
my pleasure就是我的荣幸.比如人家讲thank you你就my pleasure
with pleasure就是高兴的.比如你叫老师当你的推荐人老师可能会说：oh,I will do it with pleasure because you are my favourate student!
it's a pleasure
it is a pleasure其实就是it is my pleasure.和上面一样.可以讲,It is a pleasure to do it for you.