Electrogravimetry
[化] 电重量法; 电重量分析法
🗣️ 情景例句
We have no collateral.
我们没有担保物。
To drop
掉下
No, more, about 130 years ago. Most of the slave owners were rich farmers who lived in the south. They wanted to keep their slaves.
不，还要早，大约130年前。大多数奴隶主都是住在南方的富有的农场主。他们想保留自己的奴隶。