butterfly tail

基本解釋

The butterfly kick is also known as the dolphin kick since it is similar to the movement of a dolphin tail.
蝶泳的打腿還有一個(gè)常見的俗名，即海豚踢。這是因爲(wèi)這種打腿方式和海豚尾巴的運(yùn)動(dòng)方式非常相似。
xmyx.org
As I opened the garage door, I startled a large moth, which, upon spreading it's wings, displayed a bright red "tail" hidden by the motley brown wings, more a "butterfly" than a moth.
儅我打開車庫大門的時(shí)候，我驚起了一衹大飛蛾。儅它伸展開翅膀時(shí)，可以看到一條鮮紅色的“尾巴”隱藏在它那斑襍的棕色翅膀上。