Sigma bond
[化] σ键
🧩 词语组成解析
[计] 求和\\n[医] σ(希腊文第十八个字母)
🗣️ 情景例句
Well, that was delicious! Thanks very much indeed. I know that you are a really good cook.
阿，这顿饭真是太可口了，非常感谢。我知道你是一个非常出色的厨师。
Pain past is pleasure.
过去的痛苦即是快乐。
Ashamed of having acted so rashly, Dimitri apologized to Aleko for having accused him.
迪米特里为自己的鲁莽而感到不好意思，向阿列科道了歉，说是错怪了他。