On the next rung up the ladder of difficult mathematics comes doing the same thing in four-dimensional space.

在这个困难的数学阶梯上取得下一个进展之前，得先在四维空间做同样的事情。

youdao

So now he's rung me up to say the only day he can come is next Monday.

所以他刚才给我打来电话通知我他只能在下星期一来。

youdao

Just jump from one rung to the next. Eventually, increase your range and stack a series of doubles together, climbing up the board and down again.

先一格一格的跳，慢慢增加距离至一系列在板上爬上再爬下的组合动作。

youdao

On the next rung up the ladder of difficult mathematics comes doing the same thing in four-dimensional space.

ECONOMIST: Proof of the truth of the Poincar�� conjecture

And just because you can organize one set of (mostly less well paid) players (with smaller egos and less pushy agents) doesn't mean you'll be able to do it at the next rung up the ladder.

WSJ: Hot Managers Moyes, Martinez Look to Future