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're on the day shift now.
你现在上白班。
You (or One) cannot make a silk purse out of a sow's ear.
粗瓷碗雕不出细花来。
What's the time?
几点了？