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
But it'll be better tomorrow.
但是明天就会好多了。
Please estimate your living costs for this month.
请估计一下你这月的生活费用。
but I could not conceal the fact that I was impressed by the size of the diamonds.
其钻石之大给我留下了深刻的印象。