youdao

This rime increased, layer upon layer, across Ginnungagap.

这雾凇一层又一层地增加，横跨了太古空隙。

youdao

Mountain areas around the tropical forests, layer upon layer, not Weiyi.

五指山区遍布热带原始森林，层层叠叠，逶迤不尽。

youdao

You have to add to this layer upon layer of professional interest groups having their say.

BBC: Health Bill: Where's the strategic argument?

But at the same time, it develops organically, layer upon layer, unfurling new leaves of sound and dappled lightness.

NPR: Amiina: A Dance of Sounds in Space

Additive manufacturing is the process of joining materials to make objects from 3D model data, usually layer upon layer.

WHITEHOUSE: Delivering on Manufacturing Innovation