Subsoil
[ ['sʌbsɔil] ]
成人 Adult Edu
n. 下层土, 底土\\nvt. 掘起...的底土
📖 牛津释义
subsoil
n[U]
layer of soil lying immediately beneath the surface layer 底土（层）; 心土（层）. Cf 参看 topsoil (top1).
🗣️ 情景例句
but just right for us.
但正好够我们住。
David would get up early in the morning to deliver newspaper.
戴维一早起床就去送报纸。
Bless you!
祝福你！