Dioxopiperidine
二氧代哌啶, 哌啶二酮
🗣️ 情景例句
Good-bye.
再见。
While we breathe, there is hope.
只要活著，就有希望。
A few days later about 140 black people were taken and put on a tall sailing ship waiting off the coast.
几天以后，大约140名黑人被带到一艘停靠在海岸边的大帆船上。