Dental drill
[醫] [牙]鉆
?? 詞語組成解析
dental
['dentl]
adj. 牙齒的;牙科的;（輔音）齒音的;
n. 齒音;
drill
[dr?l]
n. 操練;鉆頭;軍事訓練;（應對緊急情況的）演習;
vt.& vi. 鉆（孔）;打（眼）;操練;訓練;
vt. 作…演習，操練;
??? 情景例句
You bet I have!
我鐵定已經釣到了！
We extend hospitality to our guests.
我們熱情款待客人們。
He had been obliged to join the army during the Second World War.
年齡比他兩個弟弟大很多，第二次世界大戰期間被迫參軍。