countersink
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(pt -sank /-sNk; -9sANk/, pp -sunk ) [Tn usu passive通常用於被动语态 ]
1 enlarge the top of (a hole) so that the head of a screw or bolt fits into it level with or below the surrounding surface 钻埋头孔.
2 insert (a screw or bolt) into such an enlarged hole 将(螺钉或螺栓)旋入埋头孔中.
🗣️ 情景例句
There are other boys and girls here,
还有其他男孩女孩在这儿,
One swallow does not make a summer.
一燕不成夏。
As he hated army life, he decided to desert his regiment.