Dalembertian
达兰伯算符
🗣️ 情景例句
When is check-out time?
什么时候必须结帐和离开宾馆？
A barking dog is better than a sleeping lion.
吠犬胜于睡狮。
I'll have to go now. Someone wants to use the phone. All the best.
现在我得挂电话了。有人想用电话。祝你一切都好。