Polytech
abbr. polytechnic 多种工艺的; polytechnical （传授）多种工艺的，多种科技的
🗣️ 情景例句
Hi, Dad.
你好， 爸爸。
I don't know for sure.
我不能肯定。
We must stress that these payment terms are very important to us.
我们必须强调这些付款条件对我们很重要。