Physical layer
[计] 物理层
🧩 词语组成解析
layer
['leiə]
n. 层，层次;膜;[植]压条;放置者，计划者;
vt. 把…分层堆放;借助压条法;生根繁殖;将（头发）剪成不同层次;
vi. 形成或分成层次;[植]通过压条法而生根;
🗣️ 情景例句
Take care, and have a nice flight.
请保重！祝你一路顺风！
He was lucky to have a good home in which to grow up.
他幸运地生长在良好的家庭里。
Yes, it's nice to be finished.
是啊，完成了真好。