Sigmatropic
n. [化]σ移位的,单键转移的
🗣️ 情景例句
No, I think it's important to do it now.
不 ，我觉得还是应该现在动手术。
At least everyone's all right.
至少大家都没事。
For a long time.I watched them scurrying around the base of the tree in bewilderment.
在很长一段时间里，我看见蚂蚁围着大树底部来回转悠，不知所措。