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
You and I are very busy these days.
这些天来我们俩都很忙。
The first blow is half the battle.
头炮打响，等于半个胜仗。
Yes, that's right.
对的。