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
Please, use the phone.
请打吧。
The history paper was really easy, so was the biology one.
历史试题确实容易，生物试题也很容易。
During a radio programme, a company of biscuit manufacturers once asked listeners to bake biscuits and send them to their factory.
有一次，在电台播放的节目里，一个生产饼干的公司请听众烘制饼干送到他们的工厂去。