Sigma complex
[化] σ络合物
🧩 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
Believe me.
相信我。
A good winter brings a good summer.
瑞雪兆丰年。
He began his diet a week ago.
他是一星期前开始节食的。