Commutativity
[计] 可交换性
🗣️ 情景例句
I go camping in the mountains to enjoy the fresh air.
我去山中宿营以享受新鲜的空气。
Love is never without jealousy.
爱情莫不忌妒。
I haven't heard from her for a long time.
我好久没有她的消息了。