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in the PONS Dictionary

layer [ˈleıə] N

1. layer:

layer
层 céng
layer
阶层 jiēcéng
layer
地层 dìcéng
a layer of earth

2. layer:

layer
产蛋鸡 chǎndànjī

3. layer:

layer
铺设者 pūshèzhě
layer
敷设机 fūshèjī

ozone layer N

ozone layer
臭氧层 chòuyǎngcéng