B horizon
B层；沉淀层
🧩 词语组成解析
horizon
[hə'raɪzn]
n. 地平线;范围;界限;眼界;
🗣️ 情景例句
Forgive me for being 20 minutes late for our date.
请原谅我迟到了二十分钟。
To mend a tear
补破洞
It would strike twelve in twenty minutes' time.
再过20分钟，大钟将敲响12下。