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
They hardly ever see each other.
他们几乎彼此不碰头。
I feel very comfortable.
我觉得很舒服。
There are some in the cupboard.
碗橱里有几只。