Pontus euxinus
[拉丁语]=Black Sea
🧩 词语组成解析
[史]本都(黑海南岸古王国)
🗣️ 情景例句
We're on the fifth floor.
我们在五楼。
I learned grammar this afternoon.
我今天下午学语法。
when he knew that he was dying, he made me promise to go on my own.
他知道自己已奄奄一息，于是他要我答应一定单独回故乡一趟。