Norcholanic acid
[化] 降胆烷酸
🧩 词语组成解析
🗣️ 情景例句
Am I making my self clerar?
我讲的清楚吗？
Yes. It was delicious.
是的，味道很好。
Why does aperson standing in a bus or train tend to fall when a sudden start is made?
一个人站在公共汽车或火车上，当车突然开动时，他为什么会倾倒呢？