It is a pleasure.用于何种场合?

It is a pleasure.用于何种场合? It is a pleasure.和It is my pleasure.的意思相同吗?使用场合有何不同?还有with pleasure.和它们两个有何异同. it is a pleasure和my pleasure 有什么区别 it is a pleasure和my pleasure有什么区别 with pleasure和It is a pleasure的区别 with pleasure和it is a pleasure的区别 It is a pressure是什么意思?pleasure It is a pleasure to do sth. it is a pleasure to help it is a pleasure的意思 it is pleasure是什么意思? it is my pleasure. It is a pleasure和It is my pleasure 的区别 it is a pleasure 和it is my pleasure 有什么区别? My pleasure 与 It is a pleasure有什么区别?what a shame?什么意思? with pleasure.和it's a pleasure. is,it,talk,him,with,pleasure,a,grest,to It is my pleasure to have a friend like you