🧩 词语组成解析
a. 掌上型；手持型
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
Please make an effort to arrive early.
请争取早点来。
A bird is known by its note, and a man by his talk.
闻其歌知其鸟，听其言知其人。
What's your problem?
你怎么回事啊？