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
that I wasn't sure.
我说我不能确定。
The doctor said I looked pale and tired.
医生说我看起来苍白和疲倦。
OK. But I'm afraid I may be a little late.
好。不过我恐怕会稍晚一点到。