You need an even surface to work on.

你需要有个平面在上面工作。

《牛津词典》

The tables are fitted with a glass top to provide an even surface.

那些桌子都装有玻璃台面以提供平滑的表面。

《柯林斯英汉双解大词典》

After the sunset the temperature drops to 27 degrees. It becomes so hard to move that the ride on even surface seems a summer ride up the mountain.

日暮时分，气温下降了27摄氏度。在湖面行走亦越发艰难，此时在湖面驱行就像是夏日的。

youdao

The exploration vehicle will be able to measure methane even at very low levels in many places on the surface.

VOA: special.2009.12.30

He points out that even the driest deserts on Earth have more water than the surface of the moon near its poles.

VOA: special.2009.09.30

Even civil rights leader Reverend Jesse Jackson admits that on the surface, Gary,Indiana seems an unlikely location for a tribute to one of the world's most popular musicians.

VOA: standard.2009.07.11

The uplifting also means that oil sands deposits are relatively shallow: some can even be surface-mined like coal.

FORBES: The Promise And Pitfalls Of Canada's Oil Sands

This would permit the detection of chemical signatures associated with specific atmospheric gases and perhaps even some surface processes.

BBC: Kepler telescope spies 'most Earth-like' worlds to date

Heck, even the Surface Pro reared its head backstage at the show.

ENGADGET: How hardware startups changed the face of CES