There is a maximum size that mountains can attain that gets smaller as the planetoid gets more massive.
There is a maximum size that mountains can attain that gets smaller as the planetoid gets more massive.
（山体能达到的高度是有限度的，而且小行星引力越大，山体能达到的高度就越低。）
There is a maximum size that mountains can attain that gets smaller as the planetoid gets more massive.
（山体能达到的高度是有限度的，而且小行星引力越大，山体能达到的高度就越低。）