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
First use a knife to dice the meat, then add 1/4 of a cup of oil.
先用刀把肉切成肉丁，然后再加四分之一杯食用油。
We must stress that these payment terms are very important to us.
我们必须强调这些付款条件对我们很重要。
IS it true or false?
这是对的还是错的？