The roads leading to the park pass over lower parts of the huge mountains. Then the road goes lower and lower into the area of the park called Yosemite Valley.

一些通向公园的小路经过山脉中的一些低矮部分，然后继续向下，一直向下，进入到约塞米蒂山谷。

youdao

The road bends here then straightens out.

公路在这儿拐弯，然后就直了。

《牛津词典》

The road steepened and then levelled out suddenly.

路变得陡峭，然后又突然变平坦了。

《柯林斯英汉双解大词典》

Then the road goes lower and lower into the area of the park called Yosemite Valley.

VOA: special.2009.01.07

And Tokyo also demanded that Britain close the Burma Road to the Chinese city then known as Chungking.

VOA: special.2011.05.26

Up the road came the sound of creaking wheels and then, a slow cloud of dust.

VOA: special.2009.11.14

If that is so, then the road to peace must always be kept open.

BBC: Analysis: Mid-East conference hopes

Potholes develop after water that seeps beneath the road surface freezes, which then loosens the road surface.

BBC: Pothole

The officers then gouged the road with tire tracks and drove over the motorcycle so that there would appear to have been a crash.

CNN: Trayvon's killing and Florida's tragic past