the tip of a horn—an insignificant or insoluble problem tip of a horn
Reading from a tedious technical brief for hours on end, he would stray into difficult territory.
连续看上几个小时枯燥的技术简报后,他会不自觉地钻起牛角尖来。
—— 柯林斯例句They are usually energetic, very talkative, like spliting over things.
他们通常精力旺盛, 非常健谈, 喜欢钻“牛角尖”。
—— 给力词典精选To our horror, we can clearly see the horn point coming out of his mouth.
非常恐怖的是, 我们可以清楚地看到牛角尖甚至从他的嘴巴里穿了出来。
—— 给力词典精选