Valid state
[计] 有效状态
🧩 词语组成解析
🗣️ 情景例句
That's very nice of you, but I really can't.
你太客气了，可我真的非走不可。
There is nothing either good or bad, but thinking makes it so.
事情本无好与坏，全在自己怎么想。
He was not a bit tired.
他一点也不累。