undersoil
N ชั้นใต้ดิน
UNDERSOIL
n.Soil beneath the surface; subsoil.
UNDERSOIL Un "der *soil `, n.
un der soil |ˈəndərˌsoil ˈəndərsɔɪl | ▶noun subsoil.
under |soil |ˈʌndəsɔɪl | ▶noun [ mass noun ] subsoil.