Law of commutation
[计] 交换律
🧩 词语组成解析
law
[lɔ:]
n. 法;法学;规律;法制;
vt.& vi. [口语、方言]诉诸法律，对…起诉，控告;
vt. 控告;对…起诉;
of
[əv]
prep. 关于;属于…的;由…制成;
aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气];
commutation
[[ˌkɔmju(:)'teiʃən]]
n. 交换, 变换, 代替\\n[电] 整流
🗣️ 情景例句
Four o'clock at the advanced exercise class. With me.
四点钟去高级健身课， 跟我一起。
By what time should I check in?
我该什么时间办理登机手续呢？
Can you read that.
看得清楚吗？