Calcon
[化] 钙试剂; 茜素蓝黑
🗣️ 情景例句
Can you tell me where the tourist sites are located?
你能告诉我本地有什么旅游名胜吗？
What's the rush?
你急什么？
Rescue workers are therefore drilling a hole on the north side of the mine.
因此，营救人员在矿井的北侧钻了一个洞。