蝴蝶 (butterfly) 的读音是 /ˈbʌtərflaɪ/。它的词源可以追溯到中世纪的英语，当时它的词根是 "butter-fleoge," 意思是 "黄油飞蛾"。
下面是一些英文例句：
The butterfly flew from flower to flower.
蝴蝶从一朵花飞到另一朵花。
A butterfly can change its appearance as it transforms from a caterpillar to a winged insect.
蝴蝶可以改变它的外貌，从毛虫变成有翅膀的昆虫。
The butterfly symbopzes transformation and beauty.
蝴蝶象征着转变和美丽。