1ADJ-GRADED 口风紧的;守口如瓶的 If you describe someone as tight-lipped, you mean that they are unwilling to give any information about something. 口风紧的;守口如瓶的
Military officials are still tight-lipped about when or whether their forces will launch a ground offensive. [+ about]
军官们对于什么时候以及是否发动地面进攻依然守口如瓶。
2ADJ-GRADED (尤指生气、不赞同时)紧闭双唇的 Someone who is tight-lipped has their lips pressed tightly together, especially because they are angry or disapproving. (尤指生气、不赞同时)紧闭双唇的
He was sitting at the other end of the table, tight-lipped and angry.