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
Good-bye.
再见。
Speech is silver (or silvern), silence is golden.
雄辩是银，沈默是金。
I find young people exciting.They have an air of freedom,
我觉得年轻人令人振奋，无拘无束。