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
That's a neat idea.
这是个好主意。
The Senator acceded to his defeat before the end of the election.
那位参议员在选举结束以前就承认落选了。
You had it when I last saw you.
我上次见你时你还有的。