The water table is not flat but usually follows the contours of the topography.

地下水位是不平坦的，而是通常随地势而变化。

youdao

Because the surface of the water table is not flat but instead rises and falls with topography, groundwater is affected by gravity in the same fashion as surface water.

由于地下水位不是平面的，而是随着地形起伏的，所以地下水和地表水一样受到重力的影响。

youdao

Shade and bad weather like snow don't hurt it because the panels are not flat.

阴影以及降雪等恶劣天气对其没有影响，因为电池板是非平面的。

youdao

Unlike kilims, these "pile" carpets are not flat, they are deep and soft because their surfaces are covered with the ends of thousands of pieces of yarn.

VOA: special.2009.11.04

Those breasts are flat and fallen now ] speaking to her of her body]; Live in a heavenly mansion, Not in some foul sty."

你乳房已经平而扁,和她谈她的身体;,快住进天国的大厦吧，别再呆在臭猪圈，“

耶鲁公开课 - 现代诗歌课程节选

The personal income tax is not simple; it's not just a flat rate on your income, it depends on the type of income.

个人所得税计税方法并不简单,并不是统一的征收税率,而是取决于你收入的类型

耶鲁公开课 - 金融市场课程节选

Regardless of what Tom Friedman said, the world is not flat, and location still matters.

FORBES: Will Hoverbikes Be More Important Than Tacocopters?

The result was not flat, but rather full of movement and depth.

ECONOMIST: Post-war artists

It was a comfortable run, not flat out.

BBC: European Athletics: Greene and Williams make finals