Engelhardite
锆石
🗣️ 情景例句
After studying an hour, I finally got the hang of the lesson.
我学习了一个小时，终于理解了这一课的要点。
Bed is a midicine.
睡好觉，如服药。
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。