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
Would you please try to keep quiet at this hour?
这么晚了，你能不能尽量保持安静。
They've already turned on the electricity.The house is ready.
他们已经开了电.房子是准备好了的。
Yes, thank you, Miss Gao.
谢谢高老师。