Kellerite
铜镁矾
🗣️ 情景例句
Do you know the phone number of the restaurant?
知道那家餐厅的电话号码吗
How many slices are you going to use?
你要用几片？
When he died, however, his brothers found it impossible to keep the secret any longer.
他死后，他的弟弟们才觉得无法再保守这个秘密了。