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
There's lots of time.
时间多得很。
That's a good idea .
那是个好生意。
Which part of England do you come from?
你从英国的什么地方来？