Border layer
[医] 界层(虹膜第四层,由前向后)
🧩 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
Maybe she'll call back. She promised.
也许她会打电话回来。她说了。
The water that bears the boat is the same that swallows it up.
水能载舟，也能覆舟。
How far is it?
有多远？