墙: 名词(砖、石等筑成的屏障或外围) wall 短语和例子城墙 town [city] wall; 爬墙 climb a wall; 围墙 enclosing [surrounding] wall; 砖墙 brick wall; 把画挂到墙上。 hang the picture on the wall. 隔墙有耳。 walls have ears
An approximately one - light - year tall " pillar " of cold hydrogen towers above the wall of the molecular cloud 从分子云墙上耸立出来的一个大约1光年高的冷氢气柱。
3.
? an approximately one - light - year tall " pillar " of cold hydrogen towers above the wall of the molecular cloud 顶部? ?一个大约一光年高的冷氢“塔柱”处在分子云墙的上面。
4.
[ top ] ? an approximately one - light - year tall " pillar " of cold hydrogen towers above the wall of the molecular cloud 顶部? ?一个大约一光年高的冷氢“塔柱”处在分子云墙的上面。
