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'm a photographer.
我是摄影师。
He that fears death lives not.
怕死者活不了。
I'm not sure that this conference is as good as last year's.
我确信这次会议不如去年的会议精彩。