Military officials are still tight-lipped about when or whether their forces will launch a ground offensive.

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。

A thin-lipped smile spread over the captain's face.

船长薄薄的唇边露出一个微笑，然后在脸上漾开。

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。

They seem all to be descended from the same bland and adorable ancestor, a wide-eyed, thin-lipped soul with barely any nose and a mane of bouclé hair.

他们都像从一种温和的，可爱的祖先进化来的，这种动物眼睛大大的，嘴唇很薄，几乎没有鼻子，带着毛茸茸的绒毛。

A hare-lipped monkey is an anomaly.

豁嘴的猴子是异常的东西。