sub-excavation

短语

词形变化

sub-excavations 复数 sub-excavations

别名

subexcavation

释义与例句

n.
  1. 1.

    An excavation underneath something, or the excavation of a subgrade

    We were grading the road and found a soft spot where we did a sub-excavation.

词源

From sub- + excavation.

来源：wiktionary