Sigma reaction
[医] 西格马反应, δ反应(梅毒的絮凝反应)
🧩 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
No, not yet. What about you?
不， 还没有。你呢？
A strong grip was necessary to hold onto the large dog.
若要牵住大狗，必须用力握住皮带。
It's nice to finally meet you.
很高兴终于与你见面了。