例句與造句

1. Anecdotally, the Vigilant was said to be capable of backwards flight in a strong headwind.
2. The hummingbirds can certainly do it, as they can hover, so it'very close to a slow backwards flight .-- V . Szabolcs 18 : 12, 11 August 2007 ( UTC)
3. Controlling these in unison enables the helicopter to perform the same maneuvers as full-sized helicopters, such as hovering and backwards flight, and many that full-sized helicopters cannot, such as inverted flight ( where collective pitch control provides negative blade pitch to hold heli up inverted, and pitch / yaw controls must be reversed by pilot ).
4. It's difficult to find backward flight in a sentence. 用backward flight造句挺難的