Drilling unit
[机] 钻床的动力组合单位
🧩 词语组成解析
drilling
[['dirliŋ]]
n. 演练\\n[医] 钻
unit
['ju:nit]
n. 单位，单元;装置;个体;[数]单位数;
🗣️ 情景例句
But Dad was so exhausted when he came home from work.
但爸爸工作回来时已经累得不得了了。
Don't mention it. I hope you can come again soon.
不用谢，希望你不久能再来。
this little 'o' indicated that the train only stopped for mail.
这个标记表示列车是为装邮件而停车。