Kellerite
铜镁矾
🗣️ 情景例句
Give me a cup of coffee, please.
请给我一杯咖啡。
People go to visit their parents, relatives and friends.
人们出门探望父母、亲威和朋友。
Students specialize in a particular type of practical joke: the hoax.
大学生擅长一种特殊的恶作剧——戏弄人。