stretchers
n. 带轮担架；伸展的人或物；伸张器（stretcher 的复数）
v. 用担架抬送（stretcher 的三单形式）
例句
The injured were carried away on stretchers.
伤员用担架抬走了。
《牛津词典》
Paintings must have rigid stretchers so that the canvas will be taut, and the paint must not deteriorate, crack, or discolor.
画必须有坚硬的画架，这样画布才会绷紧，而且颜料不能变质、开裂或变色。
I saw people taken out and put on stretchers.
我看到有人从房子里救出，然后送上担架。
