Boreholing
(borehole 的现在分词) n.地上凿洞
🗣️ 情景例句
I found another mistake.
我又发现一个错误。
Did you phone him yourself?
你自己亲自打电话给他吗？
The truth is that when mistakes occur, they are more likely to be ours than theirs.
事实上，差错很可能是我们自己，而不是铁路当局的。