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
We're on the fifth floor.
我们在五楼。
We need them urgently.
我们急需这些资料。
We're going to help some farmers with their work.
我们打算去帮助一些农民干活。