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
It's still raining. I want to play tennis.
仍然在下雨。我想打网球。
Do you ever play basketball after school?
你曾经在放学后打篮球吗？
They were not fighting men, and their harp was their passport.
他们不是作战人员，竖琴就是他们的通行证。