Polybius
n. 多样蟹属；波力比阿斯（古代希腊历史学家）
🗣️ 情景例句
and made me feel more confident.
使我对自己更加有信心。
There are ten dimes in every dollar.
每美元有十角。
He waved desperately to his companion, who had been water skiing for the last fifteen minutes.
他绝望地向他的伙伴挥手，他的伙伴在过去的15分钟里一直在滑水。