Acetaldehyde monoperacetate
[化] 乙醛合单过乙酸
🗣️ 情景例句
How many brothers and sistes do you have?
你有多少个兄弟姐妹?
To live in the library
过着研究的生活
He insisted on the assistant's counting the money before he left -- 30,000 pennies in all!
这些硬币加在一起共有30,000枚!
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