🧩 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
Where are the shopping carts?
购物车在哪儿？
As they sow, so let them reap.
种瓜得瓜，种豆得豆。
But which language is the most widely spoken in the world?
但是世界上哪种语言运用最广泛？