layer的發音：
美?[?le?r]? 英?[?le?(r)]
layer的意思：
n.層；層次；表層；階層
v.把…分層堆放
例句：
1.You?can?expect a?competent?vendor to?understand?your?environment?and?be?able?to work?with?you?to?size?each?infrastructure?layer.
有能力的運營商可以理解您的環境，能夠更好地評估每個基礎結構層的規模。
2.The?resulting?gastrula?consists?of?an?outer?ectoderm,?an?inner?endoderm,?and?a?mesoderm?layer?positioned between them.
最終原腸胚由壹個外腸胚，內腸胚，和壹個中腸胚構成。