A horizon
A层（腐殖堆积层, 等于淋溶层）
🧩 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 good to meet you.
很高兴见到 。
A good lawyer,an evil neighbour.
好律师不是好邻居。
How's the order coming along?
我们订的货怎样呢？