Commutative operation
[计] 可交换操作
🧩 词语组成解析
a. 交替的, 交换的\\n[法] 交换的, 代替的, 互相的
🗣️ 情景例句
I had planned to wear them.
我早就预备戴它们。
To enter outer space
飞出大气层，进入外太空
He has retired from political life and gone to live abroad!
他已经退出了政界去国外了！”