Keturonate
糖酮酸
🗣️ 情景例句
Would you like some coffee?
要不要来点咖啡？
The question hung in the air.
这个问题仍悬而未决。
At 2,473 metres, it is the highest mountain pass in Europe.
海拔2，473O米，是欧洲最高的山口。