Dental drill
[医] [牙]钻
🧩 词语组成解析
dental
['dentl]
adj. 牙齿的;牙科的;（辅音）齿音的;
n. 齿音;
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
Good-bye, Dean Rafer.
再见， Rafer主任。
Did you tell him yourself?
你自己亲自告诉他吗？
It was obvious that he was very embarrassed.
显然他感到很尴尬。