piranha/pəˈrɑː.njə/名词(生活于南美洲水域的)食人鲳Swimming in the murky waters of the Amazon River, the piranha lurked beneath the surface, ready to strike at any moment.在亚马逊河的混浊水中游泳,食人鱼在水面下潜伏着,随时准备发动攻击。想跟读,去练习