1. The last part of the ascent is very steep.
    最後一段上坡路很陡.

2. Though it is imperceptible at first, it will finally become so steep that we can live no longer,
    虽然在开始时觉察不到，但是终将变得如此急骤，

3. The fort on top of the steep hill is inaccessible.
    很难接近陡峭山顶上的堡垒。

4. The slope is very steep.
    这坡非常陡峭.

5. The path led to a tiny village perched on the steep sides of a mountain.
    顺着小路，我们来到一个座落在陡峭山坡上的小村庄。

6. A gradual hill is not steep.
    倾斜度小的山不陡。

7. After entering the narrow gap on the plateau, they climbed down the steep sides of the cave until they came to a narrow corridor.
    他们从高原上的窄缝进去，顺着笔直陡峭的洞壁往下爬。

8. But contains steep, probably vertical, cliffs, and gentle sediment-covered terraces,
    但其中包括陡峭的、乃至垂直的峭壁和沉积物覆盖的缓和的阶梯地带，

9. Our car stalled on the brow of a steep hill.
    我们的汽车在山顶陡坡处抛锚了.

10. Though imperceptible at first, will finally become so steep that we can live no longer,
    虽然这个过程起初难以觉察，