Calcinitre
钙硝石
🗣️ 情景例句
Pleased to meet you.
很高兴见到你。
One swallow does not make a summer.
一燕不成夏。
Yes, I remember. You were not here yesterday. What was wrong? Were you ill?
是的，我记得。你昨天没有来。怎么啦？你病了吗？