Speleothem
n. [地]洞穴堆积物(如钟乳石)
🗣️ 情景例句
Do you think so?
真的这么认为？
OFF. It gets dark.
断开开关，它就会熄灭。
Mrs.Richards sent her children to school and went upstairs to her bedroom.
把孩子送去上学，然后来到楼上自己的卧室。