Pre-drilling
n. 打超前钻眼；打井口眼
🧩 词语组成解析
abbr. 炼油工程师（Petroleum Refining Engineer）
drilling
[['dirliŋ]]
n. 演练\\n[医] 钻
🗣️ 情景例句
Dad, growing up means
爸爸， 长大了意味着
There has been a great mistake.
发生重大的错误了。
Some of us do not know much about the theatre.
我们中有些人还不太懂戏剧。