Identity operator
单位算子
🧩 词语组成解析
identity
[ai'dentiti]
n. 身份;[逻]同一性;个性;[数]恒等（式）;
🗣️ 情景例句
Where do people hang out on the weekend?
大家周末都去哪儿玩？
The post office is two blocks straight ahead, You can't miss it.
那邮局一直向前走过两条街，很好找。
Hello, Sam. Come in.
你好，萨姆。进来吧。