Sternogoniometer
[医] 胸骨角度测定器
🗣️ 情景例句
They can keep a record of all of the important dates
他们可以记录下重要的日子。
Are you sure?
你确信吗？
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。