Firming drill
[机] 形成钻
🧩 词语组成解析
vt.& vi. 使坚固（firm的现在分词形式）
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
Keep out of what doesn't concern you.
不关你的事不要插手。
He who lives in glass house should not throw stones.
正人先正己。
She owes her good health to her regular life.
她把健康归功于规律的生活。