难开口

难开口

Literally means:

hard to open mouth

Actually means:

hard to speak out

It means that someone is too shy or embarrassed to speak out. It also means that a person who has just started learning a new language finds it hard to use this language to express himself or to communicate with others.

心里有话，因面子关系，不好意思说出来。也指学了一种语言，却不能在口头上用这种语言表达自己的意思和跟人家交流。