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。
He was sitting at the other end of the table, tight-lipped and angry.他坐在桌子的另一头,双唇紧闭,满面怒容。
If you have a bone to pick with someone in your workplace, you may try to stay tight-lipped around them.如果你对职场上的同事有意见,可以试着在他们面前保持沉默。