noun · a steep and treacherous high mountain path or road

这条天梯是村民们通往山外唯一的道路。

noun · a proposed transportation system connecting a planet's surface to space

太空天梯是科幻小说中常见的设定。

noun · a mythical or metaphorical path leading to the heavens

古人认为高耸入云的昆仑山就是通往神界的天梯。

noun · a long or tall ladder used on buildings or other large structures

维修工顺着大楼外侧的天梯爬了上去。