Marabond
[商]木素磺酸钙[盐](用于油井胶泥, 铸造型芯粘合剂)
🗣️ 情景例句
Something old ...
旧的东西……
Could you tell me where is the elevator?
你能不能告诉我电梯在哪里？
What is more, this information line operates 24 hours a day.
而且，这种"问讯线路每天工作24小时。