Metaacetaldehyde
三聚乙醛
🗣️ 情景例句
I have a call to make.
我需要打个电话。
The mouse that hath but one hole is quickly taken.
狡兔三窟。
Though a number of descents have been made, much of it still remains to be explored.
人们多次进入洞内探险，但至今尚有不少东西有待勘探。