Fluted drill
[机] 开构钻
🧩 词语组成解析
a. 笛声的, 有凹槽的
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 know it hurts.
我知道那儿痛。
He made a successful career in business.
他的商务生涯十分成功。
If you make a mistake on the form, just cross it out.
如果填表出了错，划掉即可。