Counterbore
(用平底扩孔钻)扩孔［锪孔, 镗孔, 镗阶梯孔］, 沉孔, 埋头孔
🔁 扩展释义
【化】 埋头孔
🗣️ 情景例句
Nice to meet you, Susan.
很高兴见到 Susan。
Self-confidence is the first requisite to human greatness.
人类的伟大，首要的是要有自信。
The sea sparkled in the sunlight.
阳光下，大海波光粼粼。