单词：underwing
音标：['ʌndәwiŋ] ；
n. 后翅, 后翅色彩瑰丽的蛾
n. moth having dull forewings and brightly colored hind wings
词型变化：名词复数形式 : underwings
词性分布：
underwing的用法和样例：
例句
用作名词(n.)
- It looks stealthy, but the underwing pylons and 90 degree fin angle are certainly not.它看上去有隐身性，但翼下挂架和90度的尾角度就不是了。
- I think the white underwing flash is more restricted on Sooty, but is very white and should contrast strongly against a darker body.我认为翼下白色的部分灰水剃鸟应该会范围更小，而且与身体暗色的部分对比更明显。