依靠或被别的物体支撑的物体，如篱笆上部的横梁现代英汉词典。

Something, such as the top rail of a fence, that rests on or is supported by something else.

youdao

依靠或被别的物体支撑的物体，如篱笆上部的横梁现代英汉词典。

Something, such as the top rail of a fence, that rests on or is supported by something else.

youdao