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
It might rain tomorrow.
明天可能会下雨。
You like to play with me, don't you?
你就这么爱耍我是吗？
He thought I was on fire.
他认为是我着火了。