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
I think I have fallen in love with someone.
我恋爱了。
Look over to the southeast and you can see the con stellation of Orion.
眺望东南方向，你就可以看到猎户星座。
I'll wanted to see your factory for a long time.
好久就想来看看你们的工厂了。