Submantle layer
[医] 套下层(牙质)
🧩 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
Very valuable.
很有价值。
It's a beautiful country with several chains of mountains.
这个国家很美，它有很多山脉。
She is quite good with her hands.
她的手很巧