Metaphophate
偏磷酸盐
🗣️ 情景例句
Hail, Hail to Michigan,
致敬， 向Michigan致敬，
Excuse me, but may I ask a question?
对不起，我可以问个问题吗？
After switching on powerful arc lights, they saw great stalagmites -- some of them over forty feet high -- rising up like tree-trunks to meet the stalactites suspended from the roof.
他们打开强力弧光灯，看见一株株巨大的石笋，有的高达40英尺，像树干似地向上长着，与洞顶悬挂下来的钟乳石相接。