layer基本解释
n,层，阶层；地层,同近
layer相关例句和用法He pulled off layer upon layer of clothing (= many layers of clothing )..他把衣服一件件地脱掉。
layer英英释义层，层次；膜；[植]压条；放置者，计划者英释nnan amount or piece of a material or substance that covers a surface or that is between two other things
layer短语boundary layer,边界层.短语
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