ridge pole

同根派生

Removable ridge pole makes tent freestanding; leave it at home to reduce travel weight.
有些人走了好远，背影还很清晰；有些事情刚结束，记忆却已经模糊。
Shelters of boughs, arranged in an A-framed fashion from a ridge pole make good temporary shelters and are first rate as windbreaks at night.
用树枝支起的帐蓬,由一根木柱支成金字塔式,是个很好的临时住所,防风能力也很好。
He flew to Europe via the North Pole.
他经由北极飞到欧洲。
See if you can hook it with this pole.
看看能不能用这根杆子把它捞起来。
He cut the iron pole to the size he wanted.
他把铁杆锯成他需要的尺寸。