Operation study
[经] 作业研究, 操作培训
🧩 词语组成解析
study
['stʌdi]
n. 学习，研究;课题;书房;结论;
vi. 考虑;沉思;默想;努力;
vt. 想出;详细地检查;背诵（台词等）;为…费心思;
🗣️ 情景例句
The old couple has already been married for fifty years.
那对老夫妻结婚已经 50 年了。
His opening remarks were serious.
他的开场白说得很严肃。
What's the meaning of this?
这是什么意思？