Spatial structure
[化] 立体结构
🧩 词语组成解析
🗣️ 情景例句
Hmm. I can't remember.
嗯， 我记不起来了。
Soon up, soon down.
升得高，落得快。
The deepest holes of all are made for oil, and they go down to as much as 25,000 feet.
在所有洞穴中，为寻找石油所钻的洞是最深的，这些洞可深达25，000英尺。