Pericemental layer
[医] 牙骨质周层
🧩 词语组成解析
[医] 牙周膜的
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
I know it's Malcolm Stewart.
我就知道是Malcolm Stewart。
I couldn't get through.
电话打不通。
They help their parents to open their stockings, too.
他们还帮助父母打开他们的袜子。