hand churn drill

例句：

1. 1. We used a hand churn drill to remove the old paint fromthe walls.
   我们用手动钻来去除墙上的旧漆。
2. 2. The carpenter useda hand churn drill to make holesfor the screws.
   木匠用手动钻为螺丝制作孔洞。
3. 3. The constructionworkers used hand churndrills to level the groundbefore starting the project.
   建筑工人使用手动钻在开始项目之前平整地面。