Zechstein
镁灰岩
🗣️ 情景例句
Certainly. Hold on, please.
当然可以，请稍等。
To love and to be loved is the greatest happiness of existence.
爱人和得到人爱是人生最大的幸福。
I don't know. I've got a headache and a cough.
我不知道。我头痛和咳嗽。