If you leave, for example, a bar of ice supported only at one end, the end, the unsupported end will deform under its own weight, it'll kind of flatten out at one end, get distorted, deformed.

举个例子，如果你把一根只有一端支撑的冰放在一边，没有支撑的一端会在自身的重量下变形，它的一端会变平，变形。

youdao

Export growth has started to flatten out.

出口增长已逐渐缓了下来。

《牛津词典》

The hills flatten out here, and the ground is almost level.

这里的山丘变平了，地面基本上是平坦的。

youdao

Town leaders said any floodwaters coursing down the mountain would flatten out once they reached the valley.

VOA: standard.2010.04.26

It began to flatten out, to melt into surrounding space, to attach itself to otherness.

NEWYORKER: History of a Disturbance

Hong Kong's Hang Seng swung between gains and losses to flatten out at 21, 661.08.

NPR: Asian Stocks Rebound As US Recovery Doubts Ease

The close Thursday was above the 20-day EMA which is just trying to flatten out.

FORBES: Gold: Another Technical & Seasonal Low?