Pneumatic drill
风钻, 气动排种式播种机; 气钻
🧩 词语组成解析
drill
[drɪl]
n. 操练;钻头;军事训练;（应对紧急情况的）演习;
vt.& vi. 钻（孔）;打（眼）;操练;训练;
vt. 作…演习，操练;
🗣️ 情景例句
I happened to over hear what he said.
我碰巧听到了他所说的话。
The place is too stony for farming.
这地方太多石块，不适合耕种。
If it were severe, they all fell.
如果地震剧烈，所有的木棒都会倒下。