['dr?:b?:]
drawboring
vt.
drawbore的變形
drawbore
['dr?:b?:]
n.
【木工】鉆銷孔
vt.
【木工】(在雄榫等)上鉆鉆銷孔
鏜大(炮口徑等)，擴(kuò)(炮)膛徑
變形：
vt.
drawbored
. drawboring