Orasa
abbr. operational research and system analysis 操作研究与系统分析
🗣️ 情景例句
Are we ever going to finish?
我们这样谈得完吗？
Would you like to leave your name and number?
你想要留下你的名字和电话吗？
but it was impossible to stop the thieves.
但他已无法抓住那些窃贼了。