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
Listen, Richard,doing aerobics for an hour is a lot different than lifting weights.
听着， Richard，一小时的有氧运动可与举重大不相同。
The modern farmer spreads the agricultural chemicals on the fields.
当今的农民
Hi, Lin Tao! What are you going to do on Sunday?
嗨，林涛！星期天你打算干啥？