Valid state
[计] 有效状态
🧩 词语组成解析
🗣️ 情景例句
I received a letter from my parents this morning.
今天早上我收到父母一封信。
An old poacher makes the best keeper.
老偷猎者是最好的看守人。
Meanwhile, his unit was lost and all records of him had been destroyed.
与此同时，他所在部队被击溃，他的所有档案材料全部毁于战火。