Commutative group
[计] 交换群
🧩 词语组成解析
a. 交替的, 交换的\\n[法] 交换的, 代替的, 互相的
group
[ɡrup]
n. 组，团体;群，批;（雕塑等的）群像;（英美的）空军大队;
vt.& vi. 使成群，集合;
vt. 分类，归类;
🗣️ 情景例句
She's off today.
她今天休假。
Rumor has it that he's found a new job.
听说他又找到了一份新工作。
But even in the most favourable circumstances only a small fraction of the creatures that die are preserved in this way before decay sets in or, even more likely, before scavengers eat them.
即使是在最有利的环境中，死去的生物中也只有一小部分能在开始腐烂前，或更可能在被食腐动物吃掉之前，被这样保存下来。