Combined drill
[建] 双用钻头
🧩 词语组成解析
combined
[[kəm'baind]]
a. 结合的；组合的
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
Is that it?
就这个吗？
The writer has a unique style.
这个作家有独特的风格。
It has been found that certain bats emit squeaks and by receiving the echoes,
人们发现，某些蝙蝠能发出尖叫声，