Sigmatropic
n. [化]σ移位的,单键转移的
🗣️ 情景例句
we'll spend more time together, Ellen.
我们会有更多的时间在一起， Ellen。
To march in shingle file
排成一列前进
Who has not stood in awe at the sight of a spider pouncing on a fly, or a column of ants triumphantly bearing home an enormous dead beetle?
当看到蜘蛛扑向一只苍蝇时，一队蚂蚁抬着一只巨大的死甲虫凯旋归时，谁能不感到敬畏呢？