Lectostratotype
选定标准地层剖面, 选层型
🗣️ 情景例句
in the past few weeks.
在最近几个星期。
Knowledge without practice makes but half an artist.
只有知识而无实践，只能造就半瓢水的艺术家。
No one could account for the fact that one of the boxes was extremely heavy.
其中有只箱子特别重，可谁也弄不清是怎么回事。