Validity check
[计] 有效性检查\\n[经] 有效性检查
🧩 词语组成解析
check
[tʃɛk]
vt. 检查，核对;制止，抑制;在…上打勾;
vi. 核实，查核;中止;打勾;[象棋]将一军;
n. <美>支票;制止，抑制;检验，核对;
🗣️ 情景例句
He is tough to work with.
他很难共事。
What the eye does not see, the heart does not grieve over.
眼不见，心不烦。
But in an old man who has known human joys and sorrows,
可是老年人已经饱尝了人间的甘苦，