Barrier layer
[计] 阻挡层, 势垒层
🧩 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
Being with him helped.
和他在一起有帮助。
As the tree, so the fruit.
长什么树，结什么果。
Hay had been cut and cowsheds had been cleaned.
干草已切好，牛棚也打扫干净了。