Isis
abbr. （美）废钢铁协会（Institute of Scrap Iron and Steel）；综合科学情报服务（Integrated Scientific Information Service）
🗣️ 情景例句
Now may I please say hello?
现在我可以说声哈喽了吗？
That's a tough question to answer.
那是一个很难回答的问题。
You'd better look before you leap.
你最好三思而后行。