Microvolter
交流微伏计
🗣️ 情景例句
It's on the house.
这是免费的。
To know everything is to know nothing.
事事皆知，事事不懂。
Imagine their surprise and delight when they broke open the packing cases and found that the fourth engine was sweet as honey -- still in perfect condition.
想一想他们所感受到的惊奇和兴奋 —— 当他们拆开包装箱时，他们发现第4台发动机就像蜂蜜一样甜 —— 发动机完好无损。