Geode
n. 空心石核, 晶洞, 晶洞状物\\n[医] 淋巴腔
🗣️ 情景例句
He is burning the midnight oil.
他在挑灯夜读。
I ran all the way to school, otherwise I'd have been late.
我一路跑到学校，不然就迟到了。
Since the sea covers the greater part of the earth's surface,
既然海洋覆盖着地球的大部分表面，