Annulene
[化] 轮烯; 大环轮烯
🗣️ 情景例句
How much will it cost?
需要多少钱？
The uneducated are more to be pitied than blamed.
对未受过教育的人们更多的是要可怜而非责怪。
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请在这儿签字以表明你已收到这笔钱。"