🧩 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
It seems so simple now.
现在事情显得很简单了。
Every man has a fool in his sleeve.
聪明一世，糊涂一时。
I wanted to ask Chen Wei too, but he's away.
我也想请陈伟，但他外出了。