Contrapropeller
整流（螺旋）推进器, 整流螺旋桨, 同轴反转式螺旋桨
🗣️ 情景例句
What time does the library close?
图书馆什么时候闭馆？
Bite the hand that feeds one.
恩将仇报。
All that glitters is not gold.
闪光的不全是金子。