Vibrocorer
振动采样管
🗣️ 情景例句
I planned to take a few months off.
我计划休息几个月。
Math is beyond me.
我对数学无能为力。
In the 1970s, computers were common enough, but only in big business, government departments, and large organizations.
在70年代，计算机已经相当普及了，但只用在大公司，政府部门和大的组织之中，