Bow drill
[机] 弓钻, 棒钻
🧩 词语组成解析
bow
[bəu]
n. 弓;鞠躬;船头;艏;
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
About 9:30.
大约九点半。
Don't underestimate me.
别小看我。
recorded for the slumbering scientist the strength of a shock that was too weak to waken him,and the direction from which it came.
由于地震太弱而未惊醒科学家时，就为科学家记录下了地震的强度和地震方向。