Sigmatropic
n. [化]σ移位的,单键转移的
🗣️ 情景例句
We're in here, Dad.
我们在里面， 爸爸。
How did you decide that product was safe?
你怎样决定产品是安全的呢？
She acted the role of the perfect servant for three years before Aunt Harriet discovered her 'little weakness'.
她担任“理想仆人”角色3年之后，哈丽特终于发现她有“小小的弱点”。