I refused to wear headphones because they can perforate your eardrums.我不愿戴耳机，因为它可能会使鼓膜穿孔。to perforate something with a pin用针在某物上穿孔In advanced stages the opaque corneas may ulcerate and even perforate.在疾病后期,不透明的角膜可能产生溃疡,甚...
His mind was a haze of fear and confusion.由于害怕和困惑，他当时处于一种混沌状态。Use different colours of felt pen on your sketch to avoid confusion.用不同颜色的毡头笔画草图，以免搞混。His people had fallen further and further into a quagmire of confusion.他...