He put his foot on the bottom rung to keep the ladder steady.

他用脚踩住最底下的横档稳住梯子。

《牛津词典》

At the bottom of the ladder we have only ignorance, and at the top we have knowledge.

在阶梯的最底层，我们是无知的。当我们到达顶端时，我们就拥有了知识。

youdao

Imagine, in a world where human intelligence is near the bottom of the ladder, what the world would look like even a short decade later.

在一个人类智能接近阶梯底部的世界里，就算是短短的十年之后世界会变成什么样，想象一下。

youdao

Alina from China sent us this proverb: "He who would climb a ladder must begin at the bottom."

VOA: special.2009.03.01

His fellow party member Aled Roberts AM stressed the importance of first time buyers in the property chain as he said that there is "no point hoping people will climb the property ladder if the bottom rung is missing".

BBC: Liberal Democrats debate

He realises he's at the bottom of the ladder and has a lot of hard work ahead of him, but he deserves this chance.

BBC: Farrell joined at Saracens by son

In another term, he could concentrate on his social agenda: education, health, pensions, the Citizen's Charter and opportunities for those at the bottom of the ladder.

ECONOMIST: John Major