Spear drill
[医] 剑头锥
🧩 词语组成解析
spear
[spɪr]
n. 矛;枪;（某些植物的）嫩枝;貌，标枪;
vt. 用矛刺;用鱼叉捉;〈美俚〉得到，捕到;刺，戳;
adj. 父系的，右边的;
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
Surprise parties don't always work out.
惊喜派对不是每次都成功的。
How many boxes are you going to use?
你要用几盒？
It's a pencil-box.
一只铅笔盒