柯林斯詞典straight face 1. N a serious facial expression, esp one that conceals the impulse to laugh 表情嚴肅 返回 straight face劍橋詞典a serious expression on your face that you use when you do not want someone to know that you think something is funny 故意板起的麪孔，繃著的臉 Blake looked ridiculous in leather trousers , and I was desperately trying to keep a straight face . 佈萊尅穿著皮褲看上去很可笑，我拼命忍著不笑出來。 返回 straight face