Lactones
(lactone 的复数) n.[化] 内酯
🗣️ 情景例句
that does his major accounting work
承办他主要会计工作的那家公司
Virtue is her (or its) own reward.
为善最乐。
She sang perfectly in the hall last night.
她昨晚在大厅唱得非常好。