tight-lipped

音标发音

Tse remained tight lipped throughout, arriving each day for the case flanked by his parents and lawyers and clenching a bottle of Pepsi Cola, with which he has a contract.
自始至终，霆锋保持低调，一言不发，在父母以及律师的陪同下到达法院受审。同时，身为代言人，他还紧握一瓶百事可乐。（这里，偶也有些不太明白，请教一下，怎么会是百事的啊？难道不是可口吗？
The symptom accords with the diagnosis of the Exfoliative Cheilitis, which is called "lip wind" or "tight lip" in Chinese Medicine.
其症状符合剥脱性唇炎的诊断，中医之病名为“唇风”或“紧唇”。
But now, here in this place, it's easy to summon Mariam behind the lids of her eyes: the soft radiance of her gaze, the long chin, the coarsened skin of her neck, the tight lipped smile.
但如今，在这个地方，她轻而易举地在眼睑之后见到玛丽雅姆：柔和的目光，长长的下巴，皮肤粗糙的脖子，嘴唇紧闭的笑容。
Your tight lips will tell why my heart feels no peace.
你紧闭的双唇知道我的心为何没有片刻宁静，
It's a tight squeeze to get five people in that small car.
五个人坐在那个小车子里真是太挤了。

Someone who is tight-lipped is pressing their lips together to avoid showing anger, or is refusing to speak about something.